This creamy zucchini soup is a revelation for anyone seeking a healthy, low-calorie meal without sacrificing flavor. With a remarkably smooth texture and simple preparation, it proves that healthy eating can be incredibly delicious. The focus on fresh zucchini and minimal ingredients makes this zucchini soup a go-to for a quick lunch or a light dinner. Its versatility and satisfying creaminess, achieved with very few calories, make it a staple in healthy eating plans.

Time: 20 min
👥 Servings: 6-8
📊 Level: Easy
🥗 10 ingredients

Key takeaways

  • The key to a creamy, low-calorie zucchini soup is gentle aromatic sautéing, proper simmering for vegetable breakdown, and thorough blending.
  • Seasoning and broth quality are crucial for flavor depth.
  • Adjusting liquid and simmering time can fix a thin consistency.
Creamy Zucchini Soup (45 Calorie!) - Zucchini soup: Make this incredibly healthy and creamy soup in under 40 minutes. Low-calorie, satisfying, and bursting with

Creamy Zucchini Soup (45 Calorie!)

This creamy zucchini soup, low in calories, features tender zucchini and savory chicken broth for a light and satisfying meal.
Cook Time 20 minutes
Total Time 20 minutes
Servings: 8
Course: Soup
Cuisine: American
Calories: 45

Ingredients
  

  • 700 g zucchinis (4 largish), peeled and cut into 1.5cm / 3/5″ slices
  • 1/2 large onion, roughly chopped (brown, white, yellow)
  • 2 garlic cloves, whole
  • 2 cups (500 ml) chicken broth (or veg broth)
  • 2 cups (500 ml) water
  • 1/2 tsp each garlic and onion powder
  • 1/4 tsp black pepper
  • 1 cup (250 ml) 0% fat milk
  • 1 tbsp (15g) butter
  • 2 garlic cloves, minced

Method
 

  1. Place zucchinis, onion, and 2 whole garlic cloves into a pot with chicken broth, water, garlic powder, onion powder, and black pepper.
  2. Cover and bring to a simmer over medium-high heat, then reduce heat to medium and cook for 15 minutes until zucchinis are very soft.
  3. Remove pot from heat, stir in the milk, and use a handheld blender to blitz until completely smooth and creamy. Season with salt to taste.
  4. Melt butter in the same (or another) pot over medium heat.
  5. Add the minced garlic and roughly chopped onion, and cook for 3 minutes until the onion is translucent and sweet.
  6. Stir in the chicken broth and bring to a gentle simmer for 2 to 3 minutes.

Notes

– Use 0% fat milk for the lowest calorie count, but whole milk or unsweetened plant-based milks also work for different dietary needs.
– For added flavor, consider sautéing a carrot and a small bell pepper with the onion before adding the broth.
– This soup is best enjoyed fresh, but can be stored in the refrigerator for up to 3 days. Reheat gently on the stovetop.
Nutrition information is an estimate, calculated automatically. Values vary with brands, substitutions and portion sizes.

The technique that makes it

The magic behind this incredibly low-calorie zucchini soup lies in a few key techniques that maximize flavor and create a creamy texture without relying on heavy ingredients. Firstly, the initial sauté of the onion and whole garlic cloves in butter is crucial. This step softens the aromatics and builds a foundational layer of savory flavor. Using whole garlic cloves here allows them to gently infuse the oil and butter without becoming bitter, a common pitfall when garlic is cooked too aggressively or for too long.

Secondly, the simmering process is where the zucchini truly breaks down. By cooking the peeled and sliced zucchini in a combination of chicken or vegetable broth and water, you’re essentially creating a flavorful liquid base that the vegetable will absorb and soften into. The broth provides depth, while water keeps the calorie count low. Don’t overcook the zucchini to the point of mush; aim for tender but still holding some structure.

The final, and perhaps most important, step for creaminess is the blending. Using an immersion blender or a standard blender (carefully, in batches if necessary) transforms the cooked vegetables and liquid into a smooth, velvety soup. The starch released from the zucchini, combined with the liquid, creates a naturally thickened base. The addition of milk at the end, gently heated through but not boiled, adds a final touch of richness and creaminess without significantly increasing the calorie count. The minced garlic added towards the end of cooking offers a brighter, more pungent garlic flavor that complements the mellow zucchini.

Troubleshooting

  • Soup is too thin: Ensure you’ve used the correct liquid ratios. If still too thin after blending, simmer uncovered for an additional 10-15 minutes to allow excess water to evaporate. Alternatively, you can create a slurry of 1 teaspoon cornstarch mixed with 2 tablespoons of cold water, then whisk it into the simmering soup until thickened.
  • Soup lacks flavor: The quality of your broth is key. If using a low-sodium broth, you may need to add more salt to taste. Ensure you’ve seasoned adequately with the garlic and onion powders and black pepper. A small pinch of nutmeg can also enhance the savory notes.
  • Garlic is bitter: This usually happens if the garlic is burnt during sautéing. Ensure the heat is medium-low when cooking the whole garlic cloves and minced garlic. If using whole cloves, remove them before blending if you prefer a milder infusion, or blend them in for a stronger flavor.
  • Texture is grainy: This can occur if the zucchini wasn’t cooked long enough to break down properly before blending, or if the blender isn’t powerful enough to achieve a smooth consistency. Blend in batches if necessary, ensuring each batch is thoroughly pureed.

Substitutions

  • Vegetable Broth for Chicken Broth: This is a straightforward 1:1 substitution. Using vegetable broth will result in a completely vegetarian or vegan soup (ensure your milk substitute is also vegan). The flavor profile will be slightly different, potentially milder, but still delicious.
  • Heavy Cream or Half-and-Half for 0% Fat Milk: For a richer, more decadent soup, you can substitute the milk with an equal amount of heavy cream or half-and-half. Be aware this will significantly increase the calorie and fat content.
  • Other Squashes: While zucchini is ideal for its mild flavor and low calorie count, you could experiment with yellow squash. However, yellow squash tends to have a slightly sweeter and more pronounced flavor. The calorie count may also vary slightly.
  • Herbs: Fresh herbs like parsley, chives, or a hint of dill can be blended in or used as a garnish for added freshness and complexity. A small amount of fresh basil can also complement the zucchini nicely.

Pro tips

  • Use 0% fat milk for the lowest calorie count, but whole milk or unsweetened plant-based milks also work for different dietary needs.
  • For added flavor, consider sautéing a carrot and a small bell pepper with the onion before adding the broth.
  • This soup is best enjoyed fresh, but can be stored in the refrigerator for up to 3 days. Reheat gently on the stovetop.

Enjoy this delightful and guilt-free creamy zucchini soup. It’s a testament to how simple ingredients can create something truly special.

Frequently asked questions

Can I make creamy zucchini soup without cream?

Absolutely! For a dairy-free option, substitute the heavy cream with full-fat coconut milk or a plant-based milk like cashew or almond milk. You might need to adjust seasoning slightly. For richness, a swirl of unsweetened cashew cream or even a tablespoon of tahini can also work wonders.

How long does creamy zucchini soup last in the fridge?

This soup stores well in the refrigerator for up to 3-4 days. Ensure it’s cooled completely before transferring to an airtight container. Reheat gently on the stovetop or in the microwave, stirring occasionally, until heated through. Avoid boiling vigorously after reheating to maintain its creamy texture.

Can I freeze creamy zucchini soup?

Yes, creamy zucchini soup freezes beautifully. Let it cool completely, then transfer to freezer-safe containers or bags, leaving a little headspace for expansion. It can be stored in the freezer for up to 2-3 months. Thaw overnight in the refrigerator and reheat as usual.

What to serve with low-calorie zucchini soup?

This light soup pairs wonderfully with crusty whole-wheat bread for dipping, a simple green salad with a light vinaigrette, or a side of grilled chicken or fish. For a heartier meal, consider serving it alongside quinoa or brown rice pilaf. It’s also delicious topped with fresh herbs.