A light and flavorful Zucchini Basil Soup that’s low in calories, rich in fiber, and easy to prepare. Perfect for a refreshing lunch, light dinner, or versatile meal prep option. Serve warm or chilled with optional garnishes like croutons, shredded cheese, or a drizzle of cream.
Large cutting board (e.g., John Boos Block, 12x18 inches)
Immersion blender or 64-oz blender (e.g., Vitamix Explorian)
Ingredients
1tablespoonolive oil
1medium onionchopped
3clovesgarlicminced
24ouncesvegetable or chicken broth
1.5poundszucchinicubed
½teaspoonsalt
⅛teaspoonblack pepperor to taste
½cuppacked fresh basil leaves
½small lemonjuiced
Instructions
Prepare the Ingredients: Begin by gathering all your fresh ingredients and equipment. Wash the zucchini thoroughly, then cut off the ends and dice the zucchini into uniform cubes, roughly 1-inch in size, to ensure even cooking. Chop the onion finely and mince the garlic cloves. Wash and gently pat dry the basil leaves. Have your lemon ready and measure out the olive oil, broth, and seasonings.
Sauté the Aromatics: Place a 6-quart stockpot over medium heat and add 1 tablespoon of olive oil. Allow the oil to warm until it shimmers slightly but does not smoke. Add the chopped onion to the pot and cook for 3–4 minutes, stirring occasionally, until the onions turn translucent and start to develop a light golden hue. This step enhances the natural sweetness of the onion and forms the aromatic base of the soup.
Add Garlic for Flavor: Once the onions are softened, add the minced garlic to the pot. Stir constantly for 30–45 seconds to prevent burning. The goal is to release the fragrant oils from the garlic, infusing the soup with a gentle, savory aroma. Be careful not to overcook the garlic, as it can turn bitter.
Incorporate the Broth: Pour in 24 ounces of your choice of vegetable or chicken broth. Stir gently to combine with the onions and garlic. Using a flavorful broth is key, as it provides the liquid base for the soup and adds depth without overpowering the zucchini’s natural flavor.
Add Zucchini and Seasonings: Carefully add the diced zucchini to the pot. Sprinkle in ½ teaspoon of salt and ⅛ teaspoon of black pepper, adjusting later to taste. Stir well to ensure the zucchini is evenly coated with the aromatics and seasonings.
Simmer Until Tender: Increase the heat slightly to bring the soup to a gentle boil. Once boiling, reduce the heat to low and cover the pot with a lid. Allow the soup to simmer for 8–10 minutes, stirring occasionally. The zucchini should become tender and easily pierced with a fork. This ensures the soup will blend smoothly in the next step.
Blend the Soup: Remove the pot from the heat. Add the fresh basil leaves and the juice of ½ a small lemon. Using an immersion blender, carefully blend the soup directly in the pot until it reaches a creamy, smooth consistency. If using a standard blender, work in batches pour the soup halfway into the blender, remove the center lid, cover loosely with a kitchen towel to allow steam to escape, and blend until smooth. Repeat until all the soup is blended.
Adjust Seasonings: Taste the soup and adjust salt, pepper, or lemon juice as needed. The acidity of the lemon brightens the flavors, while the fresh basil adds a herbaceous note. This is your opportunity to fine-tune the balance of flavors before serving.
Serve and Garnish: Ladle the soup into bowls and add optional garnishes such as homemade croutons, a swirl of cream, a sprinkle of shredded cheese, or a drizzle of pesto. Serve warm for a comforting dish or chill in the refrigerator for a refreshing summer option. Pair with crusty bread or a crisp side salad for a complete meal.
Storage and Leftovers: Allow any leftover soup to cool to room temperature, then transfer it to a tightly sealed container. Refrigerate for up to 3–4 days or freeze for 2–3 months. Reheat gently on the stovetop or microwave, stirring occasionally, until warmed through. This soup is excellent for meal prep, as it maintains its flavor and texture after storage.
Notes
This soup is naturally low in calories but high in fiber, making it a light yet satisfying option for any meal.
Use fresh, firm zucchini for the best texture and flavor; overripe zucchini can make the soup watery.
The recipe works equally well with vegetable or chicken broth. Low-sodium broth is recommended if you want more control over the saltiness.
Lemon juice brightens the flavor and balances the natural sweetness of the zucchini, so don’t skip it.
This soup can be served warm for comfort or chilled for a refreshing summer dish.