If you have a jar of sourdough discard sitting in your fridge right now, this sourdough discard French toast recipe is calling your name. Instead of tossing it down the drain, you can stir it into a rich, eggy custard that transforms ordinary sliced bread into something truly special. The discard adds a gentle tang that balances beautifully with the warm cinnamon and maple syrup flavors, and it also gives the batter a slightly thicker consistency that clings to each slice for a beautifully custardy result.
This is one of those recipes that feels indulgent but comes together in under 30 minutes with ingredients you almost certainly already have on hand.
Day-old sourdough bread is ideal here. Slightly stale slices absorb the custard without becoming soggy, and the dense crumb of sourdough holds up far better than regular sandwich bread during cooking. The result is a golden exterior with a soft, creamy interior that practically melts in your mouth.
Whether you are a seasoned sourdough baker or just received some discard from a friend, this recipe is a keeper. Pair it with fresh berries, a dusting of powdered sugar, or a generous pour of maple syrup for a breakfast that feels like a weekend treat any day of the week.
If you love using your discard at breakfast, you will also want to try these Sourdough Discard Pancakes for another easy morning win.
Why You’ll Love This Sourdough Discard French Toast Recipe
This recipe earns a permanent spot in your breakfast rotation for so many reasons.
The flavor is simply better than regular French toast. The sourdough discard introduces a mild, pleasant tang that plays off the sweetness of the custard and syrup in the most satisfying way.
It is also a genuinely smart way to reduce waste. Rather than discarding your starter every time you feed it, you get a delicious breakfast out of the deal.
The recipe is beginner-friendly from start to finish. You do not need any special equipment or complicated techniques, just a bowl, a whisk, and a good skillet.
It is endlessly customizable, too. You can go classic with maple syrup and butter, or dress it up with caramelized bananas, fresh strawberries, or a drizzle of cream cheese glaze.
Even picky eaters tend to love it. The slight tang from the discard is subtle enough that kids rarely notice it, but adults will appreciate the extra depth of flavor.
- Uses sourdough discard so nothing goes to waste
- Ready in under 30 minutes from start to finish
- Perfectly custardy inside with golden, slightly crisp edges
- Works with fresh or day-old sourdough bread
- Easily scaled up to feed a crowd
- No special equipment required
You might also enjoy: Sourdough Discard Waffles
Ingredients
You only need a handful of pantry staples to make this recipe shine. The quality of your sourdough bread makes the biggest difference, so use a thick-sliced loaf from a bakery or your own homemade loaf for the best results.
- 8 slices sourdough bread, about 3/4 to 1 inch (2 to 2.5 cm) thick
- 1/2 cup (120 g) sourdough discard, unfed and at room temperature
- 3 large eggs
- 3/4 cup (180 ml) whole milk
- 1/4 cup (60 ml) heavy cream
- 2 tablespoons maple syrup (plus more for serving)
- 1 teaspoon pure vanilla extract
- 1 teaspoon ground cinnamon
- 1/4 teaspoon ground nutmeg
- Pinch of salt
- 2 to 3 tablespoons unsalted butter (for the pan)
- Powdered sugar, fresh berries, and maple syrup for serving
Read Also: Classic French Toast Recipe
Kitchen Equipment Needed
Nothing fancy is required here. A wide, shallow dish is the key for soaking the bread evenly, and a heavy-bottomed skillet or griddle ensures even browning.
- Large mixing bowl or wide shallow baking dish (for the custard)
- Whisk
- Non-stick skillet or cast iron griddle
- Digital kitchen scale (optional but recommended for accuracy)
- Spatula
- Tongs
- Measuring cups and spoons
- Serving plates
This pairs beautifully with a warm mug of coffee, and if you are cooking for a crowd, you can keep finished slices warm in a 200°F (93°C) oven while you work through the batch: French Toast Casserole Recipe
Recommended Products for This Recipe
These are products I genuinely recommend based on quality and how much they improve the final result.
1. Lodge Pre-Seasoned Cast Iron Griddle
A cast iron griddle distributes heat evenly across multiple slices at once, which means no hot spots and a consistently golden crust every time. It also holds temperature better than thin pans, so you do not get temperature swings between batches. This is especially helpful if you are making French toast for a family.
2. OXO Good Grips Silicone Flexible Turner
Flipping sourdough French toast without tearing the golden crust requires a wide, flexible spatula. The OXO silicone turner slides easily under thick slices and handles the weight without bending. It is safe for non-stick surfaces too.
3. Nielsen-Massey Pure Vanilla Extract
Good vanilla extract makes a noticeable difference in custard-based recipes. Nielsen-Massey is a top-quality, pure vanilla extract that adds real depth and warmth to the batter, rather than the flat sweetness of imitation vanilla.
4. Microplane Fine Grater for Fresh Nutmeg
Freshly grated nutmeg is significantly more aromatic and flavorful than pre-ground. A Microplane makes it quick and easy, and a tiny pinch goes a long way in the custard.
Read Also: Easy French Toast Recipe
Step-by-Step Instructions
1. Prepare Your Bread
- Cut your sourdough loaf into slices approximately 3/4 to 1 inch (2 to 2.5 cm) thick. Slices thinner than this will soak through too quickly and may fall apart in the pan.
- If your bread is fresh, you can place the slices on a wire rack and let them sit uncovered at room temperature for 30 to 60 minutes. This helps them dry out slightly, which makes them better at absorbing the custard without becoming waterlogged.
- If you have day-old or slightly stale sourdough, you can skip this step entirely. Stale bread is actually ideal for French toast.
- Set the slices aside in a single layer while you prepare the custard.
2. Make the Custard Batter
- In a large, wide shallow dish (a baking dish or 9×13 pan works perfectly here), combine the 3 large eggs, 1/2 cup (120 g) sourdough discard, 3/4 cup (180 ml) whole milk, and 1/4 cup (60 ml) heavy cream.
- Add the 2 tablespoons maple syrup, 1 teaspoon vanilla extract, 1 teaspoon ground cinnamon, 1/4 teaspoon nutmeg, and a pinch of salt.
- Whisk everything together vigorously until completely smooth and no streaks of egg white remain. The sourdough discard may need an extra moment of whisking to fully incorporate, especially if it is cold.
- Taste the batter. It should be lightly sweet, warmly spiced, and have a faint, pleasant tang from the discard.
3. Soak the Bread
- Place one or two slices of sourdough bread flat into the custard mixture. Do not crowd the dish.
- Let each slice soak for 30 to 45 seconds per side, gently pressing down with your fingertips or a fork to encourage the bread to absorb the custard all the way through.
- Sourdough bread is denser than regular sandwich bread, so it needs a bit longer than you might expect. You want the bread to be saturated but still hold together. If it starts to feel mushy or begins to tear when you lift it, reduce your soaking time slightly.
- Transfer the soaked slices to a separate plate or tray while you heat the pan. Do not let them sit in the custard for more than a few minutes total or they will become too soggy.
4. Heat the Pan
- Place your non-stick skillet or cast iron griddle over medium heat. Allow it to preheat for 2 to 3 minutes. A properly preheated pan is essential for a golden crust; a pan that is not hot enough will produce steamed, pale French toast rather than beautifully browned slices.
- Add about 1 tablespoon of unsalted butter and let it melt completely, swirling it around to coat the pan. The butter should foam gently but not smoke. If it smells burned or turns brown immediately, your pan is too hot. Lower the heat slightly and add a fresh pat of butter.
- For a griddle, you may need to use a bit more butter to cover the surface evenly.
5. Cook the French Toast
- Lay the soaked bread slices into the hot buttered pan in a single layer, leaving a little space between each slice. Do not overcrowd or the temperature will drop and the toast will steam rather than sear.
- Cook for 2 to 3 minutes on the first side without moving the slices. You want a deep, even golden brown color to develop. You can gently lift a corner with your spatula after about 2 minutes to check the color.
- Once the first side is golden brown, carefully flip each slice using a wide spatula. The crust should release cleanly from the pan without tearing.
- Cook the second side for another 2 to 3 minutes until equally golden.
- The internal temperature of fully cooked French toast should reach 160°F (71°C). If your slices are very thick, you can cover the pan loosely with a lid for the last minute of cooking to ensure the center cooks through.
6. Keep Warm and Repeat
- Transfer the finished slices to a wire rack set on a baking sheet and keep them warm in a 200°F (93°C) oven while you cook the remaining bread.
- Do not stack the slices on a plate while they are still hot, as the steam will soften the golden crust you just worked to achieve.
- Add a fresh pat of butter to the pan between each batch. Wipe the pan clean with a folded paper towel if any butter residue darkens too much between batches.
7. Serve
- Arrange the finished French toast slices on plates.
- Dust generously with powdered sugar, add fresh berries, and pour warm maple syrup over the top just before serving.
- For an extra touch, add a dollop of softened butter that melts right on top of the hot toast.
- Serve immediately while the toast is still hot and the edges are at their crispiest.
This recipe is a natural companion to Sourdough Discard Cinnamon Rolls if you want to make a full sourdough breakfast spread.
Tips for Success
Getting French toast just right comes down to a few small techniques that make a big difference. Keep these in mind before you start.
- Use bread that is at least a day old. Slightly stale sourdough absorbs the custard better and does not fall apart in the pan. Fresh bread tends to become mushy.
- Do not rush the soaking step. Sourdough bread is denser than regular bread. Give each slice a full 30 to 45 seconds per side to soak up the custard all the way through.
- Preheat your pan properly. If the pan is not hot enough when you add the bread, you will get pale, steamed French toast instead of the golden, caramelized crust you are after.
- Cook over medium heat, not high. High heat burns the outside before the center cooks through. Medium heat gives you that ideal combination of golden crust and creamy center.
- Use a wide spatula for flipping. A wide, flexible spatula supports the full slice and prevents tearing the crust.
- Wipe the pan between batches. Butter burns quickly, so remove any dark residue with a paper towel before adding fresh butter for the next batch.
Read Also: Creme Brulee French Toast Recipe
Serving Suggestions
Sourdough discard French toast is rich and flavorful on its own, but the right toppings and sides can really complete the meal.
A classic combination of warm maple syrup, a pat of softened butter, and a dusting of powdered sugar never goes wrong. The sweetness of the syrup contrasts beautifully with the tang in the toast.
Fresh berries add brightness and color. Sliced strawberries, blueberries, or raspberries balance out the richness of the custard beautifully.
For a more indulgent option, top each slice with sliced bananas that have been sautéed quickly in butter and brown sugar. The caramelized fruit pairs remarkably well with the tangy bread.
- Fresh sliced strawberries with a drizzle of Fresh Strawberry Sauce
- A drizzle of Caramel Sauce and a sprinkle of sea salt for a sweet-salty finish
- Crispy Breakfast Potatoes on the side for a savory contrast
- Scrambled Eggs for a complete, protein-rich breakfast
- Whipped cream and a light dusting of cinnamon sugar for a dessert-inspired presentation
Variations to Try
Once you have mastered the base recipe, these variations are worth exploring. Each one keeps the same basic technique but changes the flavor profile in fun ways.
- Stuffed French toast: Spread a mixture of cream cheese and jam between two thinner slices before dipping and cooking. It creates a melty, creamy center.
- Chocolate chip version: Press a few mini chocolate chips gently into each soaked slice just before placing it in the pan. The chips melt into small pockets of chocolate throughout the toast.
- Pumpkin spice discard French toast: Replace the cinnamon and nutmeg with 1 teaspoon of pumpkin pie spice and add 2 tablespoons of pumpkin puree to the custard for a fall-inspired twist.
- Lemon ricotta French toast: Fold 2 tablespoons of ricotta cheese and 1 teaspoon of lemon zest into the custard for a light, citrusy version.
- Overnight soak: Prepare the custard and soak the bread slices in a covered dish in the refrigerator overnight. The bread absorbs the custard deeply, and you can go straight from the fridge to the pan in the morning.
Another great sourdough discard breakfast idea worth bookmarking: Sourdough Discard Blueberry Muffins
Storage and Reheating
Sourdough discard French toast stores and reheats surprisingly well, making it a great candidate for meal prep.
To store: Let the cooked slices cool completely on a wire rack before storing. Place them in a single layer in an airtight container in the refrigerator for up to 3 days. You can also stack them with a piece of parchment paper between each slice to prevent sticking.
To freeze: Lay the cooled slices flat on a baking sheet and freeze until solid, about 1 to 2 hours. Then transfer to a freezer-safe bag or container and freeze for up to 2 months. Reheat directly from frozen.
- Toaster: The best method for reheating. Pop slices directly into a toaster or toaster oven and heat until warmed through and the edges are crispy again, usually 2 to 3 minutes.
- Oven: Place slices on a wire rack on a baking sheet in a 350°F (175°C) oven for 8 to 10 minutes.
- Skillet: Reheat in a dry (no butter needed) non-stick skillet over medium heat for about 2 minutes per side.
- Microwave: The least recommended method, as it softens the crust, but works in a pinch. Heat on medium power for 30 to 60 seconds.
Read Also: Air Fryer French Toast Recipe
Nutritional Facts
Per serving (1 slice, based on 8 slices total, without toppings). Nutrition is approximate and will vary based on the specific bread and discard hydration used.
| Nutrient | Amount Per Slice |
|---|---|
| Calories | 230 kcal |
| Carbohydrates | 28 g |
| Protein | 9 g |
| Fat | 9 g |
| Saturated Fat | 4.5 g |
| Cholesterol | 95 mg |
| Sodium | 310 mg |
| Fiber | 1.5 g |
| Sugar | 6 g |
| Calcium | 80 mg |
| Iron | 2 mg |
Note: These values are estimates. If you are tracking macros closely, input your specific ingredients into a nutrition calculator for precise figures.
You might also enjoy: Sourdough Discard Banana Bread
Health Benefits of Key Ingredients
This recipe is a treat, but it does contain some genuinely nutritious components worth knowing about.
Sourdough discard, even unfed, contains beneficial compounds from the fermentation process. Fermented grains may be easier to digest for some people, and sourdough fermentation can reduce the phytic acid content in wheat, which improves the bioavailability of minerals like iron and zinc.
Eggs are one of the most nutrient-dense foods available. They provide high-quality complete protein, choline for brain health, and fat-soluble vitamins including A, D, E, and K2.
Whole milk and cream contribute calcium, phosphorus, and healthy fats that support satiety and help the body absorb fat-soluble nutrients from the other ingredients.
- Eggs are rich in choline, which supports brain function and memory
- Whole milk provides calcium and vitamin D for bone health
- Cinnamon has antioxidant properties and may help support healthy blood sugar balance
- Sourdough bread made with a live starter is easier to digest than commercial bread for many people
- Maple syrup (in moderation) contains trace minerals like manganese and zinc compared to refined sugar
- Nutmeg contains small amounts of antioxidants and has traditionally been used to support digestive health
Read Also: Sourdough Discard Crackers Recipe
Frequently Asked Questions
1. Can I use fed (active) starter instead of discard?
Yes, you can. Active starter will work in this recipe, but keep in mind that fed starter is more tangy and lively, so the flavor of the custard will be slightly more pronounced. Unfed discard gives a subtler tang that most people prefer for French toast. Either way, let the starter come to room temperature before adding it to the custard, as cold starter does not whisk as smoothly.
2. What kind of sourdough bread works best for this recipe?
A thick-sliced, classic sourdough boule or sourdough sandwich bread gives the best results. Aim for slices that are about 3/4 to 1 inch (2 to 2.5 cm) thick. Very thin slices absorb too much custard and fall apart. Sourdough brioche is an especially indulgent option if you have it.
3. My French toast keeps burning on the outside but is raw in the middle. What am I doing wrong?
This is almost always a heat issue. Your pan is likely too hot. Lower the heat to medium or even medium-low and give each side a full 2 to 3 minutes to cook through properly. Thick sourdough slices need a slower, gentler cook. You can also loosely cover the pan with a lid for the last minute of cooking to help the heat penetrate to the center without burning the crust.
4. Can I make the custard batter ahead of time?
Yes. You can whisk together the custard the night before and store it covered in the refrigerator for up to 24 hours. Give it a good stir before dipping the bread. If the discard has had time to settle, you may notice some separation, but a quick whisk will bring it back together.
5. Can this recipe be made dairy-free?
It can. Substitute the whole milk with full-fat oat milk or unsweetened almond milk for similar results. Replace the heavy cream with canned coconut cream (the thick, solid portion from a chilled can) for the best richness. Use a plant-based butter such as vegan butter or coconut oil to cook the toast. The flavor will be slightly different but still very good.
Another great recipe to try with your discard: Sourdough Discard Tortillas
Final Thoughts
This sourdough discard French toast recipe is one of those quietly brilliant kitchen wins. It takes something most people consider waste and turns it into a breakfast that feels genuinely special.
The combination of tangy discard, warm cinnamon, rich custard, and that golden buttery crust is hard to beat. Once you try it, plain French toast will feel like it is missing something.
Give this recipe a go the next time your discard jar is full. You will be glad you did, and so will anyone lucky enough to sit at your breakfast table.
If you make it, leave a comment below and let me know how it turned out. I love hearing what toppings and variations you tried!
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- Sourdough Starter Recipe
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