When the first chill of winter hits and someone in my household starts sniffling, I know exactly what to make. This Italian penicillin soup recipe has been my go-to comfort food for years, and it never fails to warm both body and soul.
I call it penicillin because it truly feels like medicine in a bowl. The combination of tender chicken, hearty vegetables, fragrant herbs, and perfectly cooked pasta creates something magical that seems to chase away whatever ails you.
My Italian grandmother used to make a version of this soup, though she’d never call it “penicillin.” She’d simply say it was good for you and ladle out generous portions whenever anyone looked even slightly under the weather.
What makes this soup distinctly Italian is the careful balance of flavors. The aromatic base of garlic, onion, and celery sets the stage. Fresh herbs like parsley and a touch of lemon brighten everything up. And the addition of Parmesan rind while simmering adds an umami depth that makes this soup absolutely irresistible.
I’ve refined this recipe over countless batches, and I’m excited to share every detail with you. From selecting the best chicken to achieving the perfect broth consistency, I’ll walk you through each step so you can create your own pot of Italian comfort.
Why You’ll Love This Italian Penicillin Soup Recipe
This soup has become a staple in my kitchen for so many reasons, and I know it’ll quickly become one of yours too.
First, it’s genuinely healing. The hot broth helps clear sinuses, the protein from chicken supports your immune system, and the vegetables provide essential nutrients when you need them most.
- Deeply nourishing and restorative: Every spoonful delivers comfort and nutrition in perfect harmony
- Incredibly versatile: Works equally well as a light dinner or a hearty lunch
- Budget-friendly: Uses simple, affordable ingredients that you probably already have on hand
- Freezes beautifully: Make a big batch and save portions for future sick days or busy weeknights
- Loved by all ages: From picky toddlers to grandparents, everyone asks for seconds
- Quick to prepare: Despite tasting like it simmered all day, this comes together in about an hour
Another favorite: Lemon Chicken Orzo Soup Recipe
Ingredients
Here’s everything you’ll need to create this soul-warming Italian penicillin soup recipe. I’ve organized the ingredients by category to make shopping and prep easier.
For the Soup Base:
- 2 pounds bone-in, skin-on chicken thighs (or breasts if you prefer white meat)
- 2 tablespoons extra virgin olive oil
- 1 large yellow onion, diced
- 3 medium carrots, peeled and sliced
- 3 celery stalks, sliced
- 6 cloves garlic, minced
- 8 cups chicken broth (low-sodium preferred)
- 2 bay leaves
- 1 Parmesan cheese rind (about 3-4 inches)
- 1 teaspoon dried oregano
- 1 teaspoon dried thyme
- Salt and black pepper to taste
For the Pasta and Finishing:
- 1 cup ditalini pasta (or small pasta of choice)
- 2 cups fresh spinach or kale, roughly chopped
- 1/4 cup fresh parsley, chopped
- 2 tablespoons fresh lemon juice
- Freshly grated Parmesan cheese for serving
- Red pepper flakes for serving (optional)
Kitchen Equipment Needed
Having the right tools makes preparing this Italian penicillin soup recipe so much easier. Here’s what I recommend having ready before you start cooking.
- Large Dutch oven or soup pot (at least 6-quart capacity): Essential for building flavors and simmering the soup
- Sharp chef’s knife: For efficiently chopping vegetables and herbs
- Cutting board: A large one gives you plenty of space to work
- Wooden spoon or heat-resistant spatula: For stirring and scraping up flavorful bits from the bottom
- Fine-mesh strainer: Helpful if you want to strain your broth for extra clarity
- Ladle: For serving those perfect portions
- Measuring cups and spoons: Accuracy matters for balanced flavors
- Meat thermometer: To ensure chicken is properly cooked
- Large bowl: For shredding chicken
Recommended Products for This Recipe
I’ve tested many products over the years while perfecting this recipe, and these are the ones that consistently deliver the best results. Investing in quality ingredients and tools makes a noticeable difference.
1. Le Creuset Enameled Cast Iron Dutch Oven
This is hands down my favorite pot for making soup. The heavy bottom distributes heat evenly so nothing burns, and it retains heat beautifully for that long, gentle simmer that develops deep flavors. Mine is over ten years old and still looks gorgeous.
2. Better Than Bouillon Chicken Base
When I don’t have time to make homemade broth, this is my secret weapon. It has incredible depth of flavor and none of that tinny, artificial taste you get from some broths. A little jar lasts forever and transforms water into restaurant-quality stock.
3. Parmigiano Reggiano Cheese Wedge
Real Parmigiano Reggiano makes all the difference in Italian cooking. The rind adds such complex, savory depth to the soup, and freshly grated cheese on top is incomparable. Save those rinds in the freezer specifically for soups like this.
4. Microplane Premium Zester
This tool is a kitchen workhorse. I use it to grate garlic directly into the pot, zest lemon for brightness, and grate Parmesan at the table. It’s razor-sharp and makes prep work so much faster.
You might also enjoy: Chicken Soup Recipe
Step-by-Step Instructions
I’ll walk you through every detail of making this Italian penicillin soup recipe. Take your time with each step, and you’ll be rewarded with a pot of pure comfort.
1. Prepare Your Ingredients
- Dice your onion into small, uniform pieces about 1/4 inch in size
- Peel the carrots and slice them into rounds about 1/4 inch thick
- Slice celery stalks into pieces roughly the same size as your carrots
- Mince garlic finely or use a microplane to grate it
- Measure out all your dried herbs and have them ready
- Pat the chicken thighs dry with paper towels and season both sides generously with salt and pepper
- Chop your fresh parsley and set it aside
- If using fresh spinach, wash it thoroughly and roughly chop into bite-sized pieces
2. Brown the Chicken
- Heat your Dutch oven or large pot over medium-high heat for about 2 minutes
- Add the olive oil and swirl to coat the bottom of the pot
- Once the oil shimmers and you see slight ripples on the surface, carefully place chicken thighs skin-side down in the pot
- Don’t crowd the pot – work in batches if necessary, leaving space between each piece
- Let the chicken cook undisturbed for 5-6 minutes until the skin turns deep golden brown and releases easily from the pot
- Flip the chicken using tongs and brown the other side for another 4-5 minutes
- The chicken doesn’t need to be cooked through at this stage, just beautifully browned to develop flavor
- Transfer browned chicken to a plate and set aside
3. Build the Aromatic Base
- Reduce heat to medium and add diced onion to the pot with the chicken fat and drippings
- Stir the onions frequently, scraping up all those flavorful browned bits stuck to the bottom
- Cook for 4-5 minutes until onions turn translucent and soft
- Add carrots and celery, stirring to combine
- Cook the vegetables for another 5-6 minutes, stirring occasionally, until they begin to soften slightly
- Add minced garlic and cook for just 60-90 seconds, stirring constantly so it doesn’t burn
- The garlic should become fragrant but not take on any color
This pairs beautifully with my Minestrone Soup Recipe when you want more Italian comfort food options.
4. Add Liquids and Seasonings
- Pour in all 8 cups of chicken broth, making sure to scrape up any remaining bits from the pot bottom
- Add the bay leaves, oregano, and thyme
- Nestle the Parmesan rind into the broth – it will soften and infuse the soup with incredible umami flavor
- Return the browned chicken thighs to the pot, along with any accumulated juices from the plate
- The broth should cover the chicken; add a bit more water if needed
- Increase heat to high and bring everything to a boil
- Once boiling, immediately reduce heat to low so the soup maintains a gentle simmer
- Partially cover the pot and let it simmer for 25-30 minutes until the chicken is cooked through and tender
5. Shred the Chicken
- Using tongs, carefully remove the chicken pieces from the pot and transfer to a large bowl
- Let the chicken cool for 5 minutes until you can handle it comfortably
- While it’s still warm, use two forks to shred the chicken into bite-sized pieces
- Discard the skin, bones, and any cartilage
- The meat should pull apart easily into tender shreds
- Set the shredded chicken aside while you continue with the soup
6. Cook the Pasta
- Return the pot to medium heat if it has cooled down
- Fish out and discard the bay leaves and Parmesan rind
- Taste the broth and adjust seasoning with salt and pepper as needed
- Add the ditalini pasta directly to the simmering soup
- Stir well to prevent the pasta from sticking to the bottom
- Cook for 8-10 minutes, stirring occasionally, until pasta is al dente
- Check the package directions for exact timing, but test it a minute or two before the recommended time
- The pasta will continue to soften slightly even after you turn off the heat
Read Also: Pasta Fagioli
7. Add Chicken and Greens
- Return all the shredded chicken to the pot
- Stir to distribute the chicken evenly throughout the soup
- Add the chopped spinach or kale
- Stir gently and let it cook for 2-3 minutes until the greens wilt and turn bright green
- The residual heat will be enough to wilt tender greens like spinach; kale may need an extra minute
8. Finish with Fresh Flavors
- Remove the pot from heat completely
- Stir in fresh lemon juice – this brightens all the flavors beautifully
- Add the chopped fresh parsley and give everything a final stir
- Taste one more time and adjust seasoning if needed
- Some people like an extra pinch of salt or a squeeze more lemon at this stage
- Let the soup rest for 5 minutes before serving to allow flavors to meld
Tips for Success
These tips come from years of making this Italian penicillin soup recipe, and they’ll help you achieve perfect results every single time.
Pro Tips:
- Use bone-in, skin-on chicken: The bones and skin add tremendous flavor and body to the broth that boneless, skinless pieces simply can’t match
- Don’t skip browning the chicken: This step creates layers of flavor through the Maillard reaction that make the soup taste deeply savory
- Save your Parmesan rinds: Keep them in a freezer bag and toss one into any soup or sauce for instant umami depth
- Cook pasta separately if meal prepping: Pasta absorbs liquid over time, so if you’re making this ahead, cook the pasta fresh when you reheat the soup
- Taste and season at every stage: Building flavor gradually ensures a well-balanced final dish
- Use homemade broth when possible: While store-bought works fine, homemade chicken broth takes this soup to restaurant quality
- Add acid at the end: Lemon juice loses its brightness when cooked too long, so add it right before serving
Another favorite: Turkey Soup
Serving Suggestions

This Italian penicillin soup recipe is satisfying enough to serve as a complete meal, but pairing it with the right sides elevates the entire experience.
I love serving this soup in wide, shallow bowls so you can see all the beautiful colors of the vegetables and greens. Top each bowl with a generous sprinkle of freshly grated Parmesan and a drizzle of really good olive oil.
Perfect Pairings:
- Crusty bread: A warm baguette or Sourdough Sandwich Bread is essential for soaking up every last drop of broth
- Simple green salad: Dress crisp romaine with lemon vinaigrette to complement the soup’s bright flavors
- Garlic bread: Because you can never have too much garlic with Italian food
- Roasted vegetables: Roasted Broccoli on the side adds extra nutrition
- Antipasto platter: Olives, marinated artichokes, and cured meats make a nice starter
- Fresh fruit: End the meal with something light like sliced oranges or pears
Variations to Try
Once you’ve mastered the basic Italian penicillin soup recipe, these variations will keep things interesting and help you customize the soup to your preferences.
Delicious Options:
- Italian Wedding Soup Style: Add small meatballs made from ground chicken, pork, and Parmesan along with the pasta
- Tortellini Version: Swap the ditalini for cheese tortellini for a more luxurious soup
- White Bean Addition: Stir in a can of drained cannellini beans with the chicken for extra protein and creaminess
- Spicy Kick: Add 1/2 teaspoon of red pepper flakes when sautéing the garlic
- Lemony Greek Twist: Add 2 beaten eggs at the end for an avgolemono-style finish
- Turkey Version: Use leftover turkey instead of chicken for post-Thanksgiving meals
- Vegetarian Option: Skip the chicken, use vegetable broth, and double the beans and greens
- Orzo Instead: Try orzo pasta for a different texture that’s equally delicious
Read Also: Zuppa Toscana Recipe
Storage and Reheating
Proper storage ensures you can enjoy this Italian penicillin soup recipe for days after making it, and the flavors often improve overnight.
Storage Guidelines:
- Refrigerator: Store cooled soup in airtight containers for up to 4-5 days in the refrigerator
- Freezer: Freeze in portion-sized containers for up to 3 months – leave out the pasta if freezing, and cook it fresh when reheating
- Portion control: Freeze individual servings in mason jars (leave 1 inch headspace) for easy grab-and-go lunches
- Label everything: Mark containers with the date and contents so you know what you have
- Cool completely first: Never put hot soup directly into the refrigerator as it raises the internal temperature
- Reheat gently: Warm on the stovetop over medium-low heat, stirring occasionally, until heated through
- Add fresh elements: Stir in fresh parsley, a squeeze of lemon, and extra Parmesan when reheating to refresh the flavors
- Thin if needed: Add a splash of broth or water if the soup has thickened too much in storage
Nutritional Facts
Here’s the approximate nutritional information per serving (based on 8 servings):
- Calories: 285
- Protein: 28g
- Carbohydrates: 22g
- Fat: 9g
- Saturated Fat: 2.5g
- Fiber: 3g
- Sugar: 4g
- Sodium: 580mg
- Cholesterol: 75mg
- Vitamin A: 85% DV
- Vitamin C: 15% DV
- Calcium: 8% DV
- Iron: 12% DV
Note that these values are estimates and will vary based on the specific ingredients and brands you use.
Health Benefits of Key Ingredients
This Italian penicillin soup recipe isn’t just comforting – it’s genuinely good for you. Let me break down why this soup earns its “penicillin” nickname.
The combination of ingredients in this soup creates a powerhouse of nutrition that supports your immune system and overall health. Each component plays a specific role in making this more than just comfort food.
Nutritional Highlights:
- Chicken: Rich in protein, zinc, and B vitamins that support immune function and tissue repair
- Garlic: Contains allicin, a compound with natural antimicrobial and anti-inflammatory properties
- Carrots: Packed with beta-carotene which converts to vitamin A, essential for immune health
- Celery: Provides antioxidants and anti-inflammatory compounds that support overall wellness
- Spinach/Kale: Loaded with vitamins K, C, and iron that boost energy and immunity
- Chicken Broth: The hot liquid helps clear nasal passages and keeps you hydrated
- Lemon Juice: High in vitamin C which supports immune function and enhances iron absorption
- Olive Oil: Contains healthy fats and anti-inflammatory compounds that benefit heart health
This soup works similarly to my Vegetable Soup Recipe in providing comprehensive nutrition in a single bowl.
Frequently Asked Questions
1. Can I use chicken breasts instead of thighs?
Absolutely, though I prefer thighs for their superior flavor and tenderness. If using breasts, reduce the simmering time to 20-25 minutes to prevent them from drying out. Check the internal temperature with a meat thermometer – it should reach 165°F. Breasts will shred differently than thighs, creating slightly longer, drier pieces rather than moist, tender shreds.
2. Can I make this soup in a slow cooker or Instant Pot?
Yes to both! For a slow cooker, brown the chicken and sauté vegetables first, then transfer everything to the slow cooker and cook on low for 6-7 hours. Add pasta and greens in the last 30 minutes. For an Instant Pot, brown chicken using the sauté function, add vegetables and broth, then pressure cook on high for 15 minutes with natural release. Quick release, shred chicken, then simmer pasta and greens on sauté mode.
3. Why is my soup too salty?
This usually happens when using regular (not low-sodium) broth and adding additional salt without tasting first. The Parmesan rind and cheese also add saltiness. Always taste your broth before seasoning, and add salt gradually. If your soup ends up too salty, add a peeled, quartered potato and simmer for 15 minutes – it absorbs excess salt. Remove before serving.
4. Can I make this soup ahead for meal prep?
Definitely! This soup actually tastes better the next day as the flavors meld. However, cook the pasta separately and store it apart from the soup if making more than 2 days ahead. The pasta absorbs liquid and becomes mushy if stored in the broth too long. When ready to serve, reheat the soup, add fresh pasta, and warm through.
5. What other pasta shapes work well in this soup?
Many small pasta shapes work beautifully! Try orzo for a rice-like texture, pastina for a more delicate soup, small shells that catch the broth, or broken spaghetti for a rustic feel. I avoid large shapes like penne or rigatoni as they’re awkward to eat in soup. Whatever pasta you choose, cook it directly in the broth for maximum flavor absorption.
Read Also: Lentil Soup Recipe
Final Thoughts
I hope this Italian penicillin soup recipe becomes as beloved in your home as it is in mine. There’s something truly special about a bowl of homemade soup that warms you from the inside out, especially when you’re feeling under the weather or just need some comfort food.
The beauty of this soup lies in its simplicity and versatility. You’re not just making dinner – you’re creating healing nourishment that shows love and care for whoever you’re feeding. Every time I make this, I think of my grandmother and how food can be the best medicine.
I’d love to hear how your Italian penicillin soup turns out! Did you try any of the variations? Do you have your own special twist? Drop a comment below and share your experience, or tag me on social media with a photo of your beautiful bowl of soup.
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