Italian Penicillin Soup

By Lily | Last modified on Jan 6, 2026

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Italian Penicillin Soup

When the days grow chilly or you’re craving a comforting bowl of warmth, Italian Penicillin Soup steps up beautifully. This soothing soup blends tender chicken, zesty lemon, and fragrant herbs into a dish that comforts your soul while enlivening your taste buds.

Originating from the vibrant culinary traditions of Italy, this soup is a welcome remedy for cold evenings or days when you need a nourishing pick-me-up. Its bright citrus notes combined with wholesome ingredients make it both refreshing and satisfying.

Why You’ll Love This Recipe

  • The lemon zest and juice add a refreshing brightness that enhances the savory flavors.
  • Easy to prepare with simple pantry staples and fresh produce.
  • Perfect for cozy dinners or as a healing comfort food.

Ingredients

  • Boneless skinless chicken breasts or thighs (450–550 g / 1–1¼ lb): Tender and lean protein, diced for quick cooking and absorbing flavors.
  • Olive oil (1–2 tbsp): Adds a rich, fruity base for sautéing vegetables and chicken.
  • Medium onion (1), finely chopped: Provides a sweet and savory foundation to build flavor.
  • Garlic cloves (2–3), minced: Infuses aromatic depth and warmth throughout the soup.
  • Carrots (2), sliced: Adds subtle sweetness and texture with a vibrant color.
  • Celery stalks (2), sliced: Offers a refreshing crunch and classic soup flavor.
  • Chicken broth (6 cups): Forms a savory, comforting base rich with umami.
  • Bay leaves (1–2): Impart a delicate herbal aroma that enhances the broth.
  • Dried thyme or Italian seasoning (1 tsp): Brings fragrant herbaceous notes typical of Italian cuisine.
  • Lemon zest and juice of 1 lemon: Adds a bright citrus lift balancing the savory elements.
  • Salt and freshly ground black pepper, to taste: Essential for seasoning and enhancing all flavors.
  • Chopped parsley or fresh herbs (optional): Fresh garnish bringing vibrant color and extra herbal aroma.

Instructions

Sauté Aromatics

Heat olive oil in a large pot over medium heat. Add finely chopped onion, carrots, and celery. Cook for 5–7 minutes until vegetables soften and release their natural sweetness. Then add minced garlic and sauté for an additional minute until fragrant, setting the stage for deep, layered flavors.

Cook the Chicken

Add diced chicken pieces to the pot and season lightly with salt and pepper. Cook until chicken is no longer pink on the outside, about 5 minutes, allowing it to seal in juices and develop a slight golden surface, which adds richness to the broth.

Add Broth & Herbs

Pour in the chicken broth and stir to combine. Add bay leaves and dried thyme or Italian seasoning. Bring the mixture to a gentle boil, lifting the herbal aromas and melding flavors into the broth.

Simmer

Reduce heat to low and let the soup simmer for 15–20 minutes. This slow cooking softens the vegetables and draws the flavors together, creating a harmonious and comforting soup base.

Add Lemon

Stir in fresh lemon zest and juice to brighten the broth with zesty citrus notes. Taste and adjust seasoning with additional salt and black pepper as needed to balance savory and fresh elements.

Serve

Ladle the soup into bowls and garnish with chopped parsley or your favorite fresh herbs. This adds a pop of color and fresh herbal fragrance that complements the lemon and chicken beautifully.

You Must Know

  • Lemon juice and zest can be adjusted according to your preferred level of brightness.
  • Vegetables like potatoes or spinach can be added for heartier texture and nutrition.
  • Fresh herbs such as thyme or basil can be swapped in for the dried seasoning for fresher flavor.
  • Serve with crusty bread or crackers to make it a complete and satisfying meal.

Storage Tips

Store leftover soup in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stove to prevent overcooking the chicken. For longer storage, freeze in portions for up to 2 months.

Serving Suggestions

This soup pairs wonderfully with warm, crusty artisanal bread to soak up the flavorful broth. A light green salad on the side complements the zesty freshness of the soup, making a balanced and delightful meal.

Professional Tips

  • Use chicken thighs for a juicier, more flavorful soup; breasts work well for a leaner option.
  • Finely chop vegetables evenly to ensure consistent cooking and texture.
  • Simmer gently to keep chicken tender and prevent broth cloudiness.

FAQs

Can I use other types of meat instead of chicken?

Yes, turkey can be used as a substitute. Adjust cooking time accordingly to ensure it’s cooked through.

Is this soup gluten-free?

Yes, the ingredients are naturally gluten-free, but always check broth labels to avoid any gluten-containing additives.

Can I make this soup vegetarian?

To make a vegetarian version, replace chicken with firm tofu or chickpeas and use vegetable broth instead of chicken broth.

How can I thicken the soup?

For a thicker texture, blend a portion of the cooked vegetables with some broth and stir it back into the pot before serving.

Can I prepare this soup in advance?

Absolutely, soups often taste better the next day as flavors meld. Just refrigerate overnight and reheat gently.

What other herbs go well with this soup?

Fresh basil, rosemary, or oregano can be excellent alternatives or additions, enhancing the soup’s aromatic profile.

Is it okay to use frozen chicken for this recipe?

Using thawed chicken is best to ensure even cooking. If using frozen, thaw completely before dicing and cooking.

Italian Penicillin Soup

Italian Penicillin Soup

A comforting Italian soup with tender chicken, fresh lemon zest, and aromatic herbs, delivering warmth and bright flavors in every spoonful.
Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Course Main Course, Soup
Cuisine Italian
Servings 5 people
Calories 280 kcal

Equipment

  • 1 large pot for cooking soup
  • 1 knife for chopping ingredients

Ingredients
  

  • 1 to 1¼ lb boneless skinless chicken breasts or thighs, diced
  • 1 to 2 tbsp olive oil
  • 1 medium onion finely chopped
  • 2 to 3 garlic cloves minced
  • 2 carrots sliced
  • 2 celery stalks sliced
  • 6 cups chicken broth
  • 1 to 2 bay leaves
  • 1 tsp dried thyme or Italian seasoning
  • Zest and juice of 1 lemon
  • Salt and freshly ground black pepper to taste
  • Chopped parsley or fresh herbs for garnish optional

Instructions
 

  • Heat olive oil in a large pot over medium heat.
  • Add chopped onion, carrots, and celery; cook until softened, about 5 to 7 minutes.
  • Add minced garlic and cook for another minute until fragrant.
  • Add diced chicken to the pot, season lightly with salt and pepper, and cook until no longer pink on the outside.
  • Pour in chicken broth, add bay leaves and dried thyme or Italian seasoning, then bring to a gentle boil.
  • Reduce heat and simmer for 15 to 20 minutes until vegetables are tender and flavors are blended.
  • Stir in lemon zest and lemon juice; adjust seasoning with salt and pepper as needed.
  • Ladle soup into bowls and garnish with chopped parsley or fresh herbs, if desired.

Notes

  • Lemon zest and juice brighten the flavor; adjust to preference.
  • Add potatoes or spinach for extra heartiness.
  • Swap dried thyme for fresh thyme or basil for additional aroma.
  • Serve with crusty bread or crackers for a complete meal.

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