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Cozy Creamy Zucchini Soup

This easy, comforting Creamy Zucchini Soup is perfect for enjoying garden-fresh zucchini. Quick to make in under 40 minutes, it transforms simple ingredients into a bowl of creamy bliss that tastes like it simmered all day, offering a warm hug from the inside out.
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Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings: 4 servings
Course: Main Course, Soup
Cuisine: American
Ingredients Equipment Method Notes

Ingredients
  

  • 2 tbsp butter unsalted
  • 1 yellow onion peeled and diced
  • 3 cloves garlic peeled and minced
  • 0.25 tsp dried rosemary
  • 0.25 tsp dried thyme
  • Pinch dried oregano
  • 0.25 tsp celery salt
  • salt and pepper to taste
  • Dash cayenne pepper optional
  • 5 cups fresh chopped zucchini roughly chopped
  • 3-4 cups chicken broth low-sodium or vegetable broth
  • 1 tbsp soy sauce for umami depth
  • 1 lb russet potatoes washed, peeled, and diced
  • 0.5 cup heavy cream at room temperature
  • 1.25 cups shredded cheddar cheese at room temperature

Equipment

  • Dutch oven
  • Heavy-bottomed soup pot
  • Immersion blender
  • Regular blender

Method
 

  1. Step 1: Grab your Dutch oven or a heavy-bottomed soup pot and place it over medium heat. Melt the butter. Once shimmering, add the diced yellow onion. Stir and cook until softened, about 5 minutes. Stir in the minced garlic and cook for 1 minute more until fragrant.
  2. Step 2: Add all seasonings to the pot: rosemary, thyme, oregano, celery salt, a good pinch of salt and pepper, and the optional dash of cayenne pepper. Stir and let the herbs bloom for about 30 seconds. Add the chopped zucchini, stir everything together, and cook for about 5 minutes, allowing the zucchini to soften slightly and soak up the flavors.
  3. Step 3: Add the diced potatoes, chicken broth, and soy sauce to the pot. Stir to combine. Bring the soup to a boil, then immediately reduce the heat to medium.
  4. Step 4: Let your soup simmer, partially covered, for 15-20 minutes, or until the potatoes and zucchini are wonderfully fork-tender.
  5. Step 5: Remove the pot from the heat. Grab your immersion blender and purée the soup right in the pot until it's wonderfully smooth and creamy. If you don't have an immersion blender, carefully transfer the soup in batches to a regular blender (leave the vent open and cover with a kitchen towel to avoid steam pressure buildup) and blend until smooth.
  6. Step 6: With the soup now smooth and velvety, stir in your room temperature heavy cream and shredded cheddar cheese. Keep stirring until the cheese is completely melted and evenly combined throughout the soup.
  7. Step 7: Ladle this warm, comforting soup into bowls and serve it up! Garnish with a little extra black pepper or a fresh herb sprig on top.

Notes

This soup is wonderfully versatile: use vegetable broth for a vegetarian version, or half-and-half/whole milk for a lighter cream (be careful not to boil after adding). Experiment with Gruyère or Parmesan cheese. Adjust cayenne pepper to your liking for more or less heat. A sprinkle of fresh chives, parsley, or dill stirred in at the end can brighten flavors. For a heartier meal, stir in cooked, shredded chicken or cannellini beans after blending. Serve with crusty bread, a fresh green salad, or a grilled cheese sandwich.
For best results, don't rush softening the onions, as this is crucial for a flavorful base. Use room temperature dairy (cream and cheese) to prevent curdling when added to hot soup. If using a regular blender, fill it only halfway and allow steam to escape by removing the center cap and covering with a kitchen towel. Always taste and adjust salt, pepper, and other seasonings before serving. Avoid overcooking zucchini to prevent it from turning to mush before puréeing.
Store cooled leftovers in an airtight container in the refrigerator for up to 3-4 days. This soup freezes surprisingly well for 2-3 months; for best texture, you can add cream and cheese upon reheating. Thaw overnight in the refrigerator before reheating. Gently reheat on the stovetop over low to medium-low heat, stirring occasionally, and add a splash of chicken broth or milk if it seems too thick.