Italian Penicillin Soup Recipe
Introduction
Italian Penicillin Soup is a comforting, flavorful bowl of pureed vegetables, tender pastina, and bright lemon juice. This hearty soup is perfect for chilly days or whenever you need a soothing yet nourishing meal. Its creamy texture and fresh flavors make it a family favorite.

Ingredients
- 3 Tbsp olive oil
- 3 large carrots, peeled and roughly chopped
- 1 yellow onion, quartered
- 5 cloves garlic, peeled
- 3 ribs celery, halved
- 1 tsp salt
- Black pepper, to taste
- Parmesan rind (optional)
- 8 cups chicken or vegetable broth
- 1¼ cup pastina (or other small pasta shape)
- 1 lemon (more as desired)
- Freshly grated parmesan and black pepper, for garnish
- Drizzle of olive oil (optional)
- Chopped parsley (optional)
Instructions
- Step 1: Add olive oil to a large pot and heat over medium heat. Add carrots, onion, garlic, celery, salt, and pepper. Cook for 4–5 minutes, stirring occasionally, until vegetables are slightly browned. To save time, you can skip this step and add oil and vegetables directly to the broth.
- Step 2: Add the parmesan rind and broth to the pot. Cover and bring to a gentle boil over high heat. Reduce heat to medium-low and simmer, covered, for 25–30 minutes until the vegetables are very soft, stirring occasionally.
- Step 3: Remove the parmesan rind. Use an immersion blender to puree the vegetables until smooth. If you don’t have an immersion blender, carefully transfer the vegetables to a heat-safe blender, blend until smooth, and return to the pot.
- Step 4: Add the pastina to the simmering soup. Cook for 8–10 minutes until al dente, stirring occasionally. If you plan to store leftovers, cook the pasta separately and combine just before serving.
- Step 5: Stir in the juice of one lemon. Taste and adjust seasonings and lemon juice as desired. Add more broth if you prefer a thinner soup.
- Step 6: Ladle soup into bowls. Garnish with freshly grated parmesan, black pepper, a drizzle of olive oil, and chopped parsley if desired. Enjoy warm!
Tips & Variations
- For a richer flavor, use homemade chicken broth or a good-quality store-bought broth.
- Substitute pastina with orzo, acini di pepe, or any small pasta shape you have on hand.
- Add a pinch of crushed red pepper flakes when cooking vegetables for a subtle heat.
- Use a splash of heavy cream or coconut milk when pureeing for a creamier texture.
Storage
Store leftover soup in an airtight container in the refrigerator for up to 3 days. If you cooked the pasta in the soup, it may absorb more broth and become softer over time. For best results, cook pasta separately and add just before reheating. Reheat gently on the stovetop until warmed through.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I make this soup vegan?
Yes, simply use vegetable broth and omit the parmesan rind and cheese toppings. You can add nutritional yeast for a cheesy flavor alternative.
What can I use instead of pastina?
Any small pasta like orzo, acini di pepe, or small shells work well. Choose a tiny pasta for the best texture in this soup.
Print
Italian Penicillin Soup Recipe
- Total Time: 55 minutes
- Yield: 6 servings 1x
- Diet: Gluten Free
Description
This comforting Italian Penicillin Soup is a velvety blend of sautéed vegetables, parmesan-infused broth, and tender pastina pasta, finished with a bright splash of lemon juice. Perfectly smooth and warming, it offers a deliciously soothing meal that’s easy to prepare and packed with classic Italian flavors.
Ingredients
Vegetables & Base
- 3 Tbsp olive oil
- 3 large carrots (peeled and roughly chopped)
- 1 yellow onion (quartered)
- 5 cloves garlic (peeled)
- 3 ribs celery (halved)
- 1 tsp salt
- Black pepper, to taste
- Parmesan rind (optional)
Broth & Pasta
- 8 cups chicken or vegetable broth
- 1 ¼ cup pastina (or other small pasta shape)
Finishing Touches
- 1 lemon (more as desired)
- Freshly grated parmesan, for garnish
- Black pepper, for garnish
- Drizzle of olive oil (optional)
- Chopped parsley (optional)
Instructions
- Cook vegetables: Heat olive oil in a large pot over medium heat. Add the peeled and chopped carrots, quartered onion, garlic cloves, halved celery, salt, and black pepper. Cook for 4-5 minutes, stirring occasionally, until the vegetables begin to brown slightly. This step can be skipped by adding the oil and vegetables directly to the broth to save time.
- Simmer soup: Add the parmesan rind and the chicken or vegetable broth to the pot. Cover and increase heat to high until the broth comes to a gentle boil. Then reduce heat to medium-low and simmer covered for 25-30 minutes, stirring occasionally, until the vegetables are very soft.
- Puree vegetables: Remove the parmesan rind and set it aside. Using an immersion blender, puree the vegetables in the pot until completely smooth. If an immersion blender is unavailable, carefully transfer the cooked vegetables to a regular heat-safe blender and blend until smooth before returning the soup to the pot.
- Cook pasta: Stir the pastina or other small pasta shape into the simmering pureed soup. Cook for 8-10 minutes, stirring occasionally, until the pasta is al dente. Turn off the heat. For storing leftovers, cook the pasta separately and combine just before serving to avoid sogginess.
- Add lemon: Squeeze the juice of one full lemon into the soup. Taste and adjust seasoning with additional salt, pepper, or lemon juice as desired. Add more broth if a thinner consistency is preferred.
- Serve: Ladle the soup into bowls and garnish with freshly grated parmesan cheese, additional black pepper, a drizzle of olive oil, and chopped parsley if desired. Serve hot and enjoy the flavorful and comforting soup.
Notes
- Using a parmesan rind adds depth and richness, but it’s optional if unavailable.
- For a vegetarian version, use vegetable broth instead of chicken broth.
- Cooking the pasta separately when making leftovers helps keep the pasta from becoming mushy.
- Adjust the lemon juice according to your preference for brightness and acidity.
- This soup can be stored in the refrigerator for up to 3 days and reheated gently on the stovetop.
- Prep Time: 10 minutes
- Cook Time: 45 minutes
- Category: Soup
- Method: Stovetop
- Cuisine: Italian
Keywords: Italian soup, penicillin soup, smooth vegetable soup, pastina soup, comforting soup, lemon soup, easy Italian recipe, pureed soup, parmesan soup

