Italian Penicillin Soup – The Ultimate Comfort Remedy

This goes beyond a simple recipe—it’s like a warm hug in a bowl. This Italian chicken soup starts with a classic soffritto—a mix of onions, carrots, and celery gently cooked in olive oil—then slow-simmered chicken and broth, tender little pasta pieces, and finishes brightly with fresh lemon and parsley. It’s refreshingly simple, flexible to your needs, and insists you savor every spoonful.

Keep reading to find everything laid out for you: a straightforward ingredient list, clear step-by-step instructions, plus clever swaps and storage tips. It’s easy to adjust for vegetarians, gluten-free diets, or those busy nights when you just want a one-pot meal. You’ll also get smart shortcuts, yummy serving ideas, and a handy printable recipe card for quick access whenever you need it.

• What goes into this pot of goodness and why each ingredient counts
• Step-by-step guidance to make it easy—even for beginners
• Ways to adapt for vegetarian, gluten-free, or dairy-free diets
• Tips for perfect flavor, pasta texture, and smart reheating
• Extras like serving ideas, storing leftovers, and a downloadable recipe

Whether you’re cooking to soothe a cold or just craving something wholesome, this guide makes it easy and comforting to get started.

What Makes It So Soothing

We all know there’s soup, and then there’s the kind of soup that feels like a lifesaver. Italian Penicillin Soup totally falls into that second camp. If you’re battling sniffles, helping someone heal, or just need a cozy meal after a tough day, this is the dish you want on the stove. For a creamier variation, try our creamy, savory chicken noodle soup.

This Italian chicken soup isn’t your basic broth—it’s rich and full of layers. The carrots, celery, and onions cook slowly in olive oil until sweet and soft, while garlic quietly brings its natural healing powers. Add chicken broth, tender shredded chicken, and pasta, and you get bowl after bowl of comforting goodness that feels like home. If you love orzo, our warm chicken orzo tomato soup pairs tender pasta with bright tomato for another cozy bowl.

What really sets this Italian chicken soup apart is the care you put in. You don’t rush it—you let the flavors develop slowly. This is soul food, not fast food.

I’ll walk you through every step—from that fragrant soffritto base to the fresh pop of lemon and parsley at the end. Plus, I’ll share smart ideas to make it vegetarian, gluten-free, or dairy-free without losing its heartwarming spirit. Whether it’s your first pot or your fiftieth, this recipe is the kind you return to when you need comfort most.

Ingredients for a Hearty Broth

• 2 tablespoons extra virgin olive oil
• 1 large onion, diced (about 1 cup)
• 3 medium carrots, sliced into rounds
• 3 celery stalks, chopped
• 4 garlic cloves, minced
• 8 cups low-sodium chicken broth (or vegetable broth for a vegetarian version)
• 1 whole chicken breast, bone-in and skin-on (about 1 pound)
• 2 bay leaves
• 1 cup small pasta (ditalini, orzo, or small shells work great)
• 1 teaspoon dried oregano
• 1/2 teaspoon dried thyme
• 1/4 teaspoon red pepper flakes (optional for a tiny kick)
• Salt and freshly ground black pepper, to taste
• 2 tablespoons fresh lemon juice
• 1/4 cup fresh parsley, chopped
• Freshly grated Parmigiano-Reggiano cheese (optional but recommended!)
• Extra virgin olive oil for drizzling
• Crusty Italian bread for serving

Slow-Simmered Cooking Method

1. Dice 1 large onion, slice 3 medium carrots, chop 3 celery stalks, and mince 4 garlic cloves.
2. Heat 2 tablespoons extra virgin olive oil in a large soup pot over medium heat.
3. Add the onion, carrots, and celery and cook 5–7 minutes, stirring occasionally, until soft and the onion is translucent.
4. Stir in the minced garlic and cook about 1 minute without letting it brown.
5. Pour in 8 cups chicken broth and add 1 bone-in, skin-on chicken breast, 2 bay leaves, 1 teaspoon dried oregano, 1/2 teaspoon dried thyme, and red pepper flakes if using.
6. Bring to a gentle boil, then lower the heat to a calm simmer, partially cover the pot, and simmer 25–30 minutes.
7. Remove the chicken, let it cool slightly, discard the skin and bones, and shred the meat with two forks.
8. Return the shredded chicken to the pot and taste the broth; season with salt and freshly ground black pepper as needed.

9. Bring the soup back to a low boil, add 1 cup small pasta, and cook 8–10 minutes until al dente, stirring to prevent sticking.

   

10. Remove the bay leaves, stir in 2 tablespoons fresh lemon juice and 1/4 cup chopped parsley, then adjust seasoning to taste.

Pro Tips for Best Results

This isn’t a recipe you rush — it’s a gentle build-up of flavors over time. But there are a few little shortcuts and tricks that can help your Italian chicken soup turn out perfectly every time.

Cooking Tips That Make a Difference

• Choose bone-in chicken for richer broth: The skin and bones bring a depth in flavor that boneless chicken just can’t match.
• Don’t let the garlic brown: It should just get fragrant and golden, because a bitter note can spoil the delicate broth.
• Keep the simmer low and steady: Rolling boils toughen the chicken. A gentle simmer keeps everything tender and flavorful.
• Cook pasta just till al dente: Overcooked pasta gets mushy, especially after reheating or sitting in the soup overnight. For a great example, see how ditalini holds its bite in our Creamy Parmesan Italian Sausage Ditalini Soup.

Serving Suggestions

• Always finish with lemon and parsley: These fresh notes brighten the soup and balance its savory richness perfectly.
• Add cheese and olive oil right before eating: A drizzle of good olive oil and a sprinkle of Parmigiano-Reggiano elevate the soup from comforting to restaurant-worthy.
• Serve with crusty bread: Pick a loaf that soaks up broth without falling apart. Italian sourdough, rustic baguettes, or garlic focaccia are all great choices.

Storage & Reheating Tips

Freeze without pasta: For meal prep or saving leftovers, freeze the soup before you add pasta. When reheating, stir in freshly cooked pasta for the best texture. This trick works for other pasta soups too, like this Easy Lasagna Soup (One Pot!).

Keep leftovers in the fridge up to 3 days: The flavors will deepen, but note the pasta absorbs liquid over time—so add a splash of broth or water when warming it up again.

Ways to Customize the Soup

One of the best things about this Italian chicken soup is its flexibility. Whether you need to work around dietary needs, picky eaters, or just what you have on hand, here’s how to adjust without losing the soul of the soup.

Vegetarian Twist

• Skip the chicken and use vegetable broth as your soup base.
• Add a can of white beans (cannellini or navy beans) after the veggies soften, letting them simmer gently and soak up the flavors.
• For extra savoriness, stir in a bit of miso paste at the end—it gives a rich, umami boost similar to chicken broth.

Gluten-Free Option

• Replace the pasta with cooked rice—jasmine, basmati, or arborio work wonderfully.
• Or go grain-free by adding diced gold potatoes or chopped zucchini, which will soften and absorb the broth beautifully.

Dairy-Free Version

• Simply leave out the cheese garnish.
• If you want a cheesy touch without dairy, sprinkle nutritional yeast over the top just before serving for a warm, nutty flavor.

Kid-Friendly Adaptations

• Pick mild, fun pasta shapes like mini shells or elbow macaroni to please little eaters.
• Skip the red pepper flakes and serve with shredded mild cheese such as mozzarella or Monterey Jack for a gentler taste.

Bonus Flavor Swaps

Try stirring in a spoonful of pesto at the end instead of lemon and parsley for a rustic Italian twist.

Add a few thin slices of fresh ginger during the simmer to boost immunity and add a zingy warmth.

For extra color and nutrition, toss in a handful of baby spinach or kale just before serving for a fresh, earthy bite.

How to Store and Reheat

This soup is perfect for making ahead, storing, or freezing. Follow these simple tips to keep it tasting fresh and delicious.

• Refrigerate: Keep soup in an airtight container for up to 3 days. Make sure to cool it to room temp and refrigerate within 2 hours of cooking.
• Freeze: Soup freezes well for up to 3 months. For the best texture, freeze before adding pasta.

Choose shallow containers to cool soup faster in the fridge. For freezing, use freezer-safe containers or heavy-duty plastic bags, leaving some space for expansion.

Make-ahead tip: You can cook the soup fully and refrigerate it for 2 days before serving. Keep pasta separate and add freshly cooked pasta to each bowl when reheating. For a crisp, make-ahead side that keeps well in the fridge, pair it with Honeycrisp Apple Broccoli Salad.

Freezing tip: Remove pasta before freezing. Portion the broth and shredded chicken into containers or bags, freeze, then thaw and reheat gently. Stir in fresh pasta just before serving.

1. Reheat on stovetop: Warm soup gently over medium-low heat, stirring now and then. If it thickened or the pasta soaked up too much liquid, add a splash of broth or water. Heat until hot and steaming, about 165°F (74°C) if you’re using a thermometer.
2. Reheat in microwave: Use a microwave-safe bowl, cover loosely, and heat in 60–90 second bursts, stirring in between. Add a little broth if it seems thick.
3. From frozen: Thaw overnight in the fridge, then reheat on the stove as above. For a quick method, reheat frozen soup covered on low heat, stirring often and adding liquid as needed. Avoid refreezing reheated soup.

Finish reheated soup with fresh lemon juice, chopped parsley, and a drizzle of olive oil or freshly cooked pasta for the best flavor and texture. Leftover soup gets tastier over time—just refresh with broth and heat gently. For easy dunking with reheated bowls, try 2-Ingredient Cottage Cheese Flatbread.

Common Questions About the Soup

Let’s answer your burning questions about this beloved Italian chicken soup, sometimes called “penicillin soup.”

What is the Italian penicillin soup?

Italian Penicillin Soup is a soothing chicken soup rooted in Italian cooking traditions. It features a base of aromatic veggies—onion, carrot, celery—garlic, fragrant herbs, tender pasta, and slowly simmered chicken. It gets the nickname “penicillin” because it’s often turned to as a natural remedy when feeling under the weather.

Does Italian Penicillin Soup really work?

While it’s not an actual antibiotic, this soup offers real comfort and some gentle healing benefits. The warm broth keeps you hydrated and helps soothe congestion, and ingredients like garlic, lemon, and parsley pack a mild immune boost. Plus, nothing beats the feel-good factor of eating something warm and homemade when you’re not feeling great.

Why do they call it “penicillin soup”?

Calling it “penicillin soup” is a fun way families, especially Italian and Jewish households, honor chicken soup’s age-old reputation as a go-to remedy for colds and flu. It’s not real medicine but often feels just as comforting and healing.

What is the Italian soup that cures sickness?

There isn’t one single Italian “cure-all” soup, but this Italian chicken soup named penicillin soup comes closest, thanks to its mix of garlic, herbs, lemon, and love. Other Italian healing soups include brodo (clear broth) and stracciatella (egg-drop soup), but this one balances comfort, nutrition, and flavor beautifully.