Chilled Zucchini Soup With Lemon and Basil

Updated Oct. 12, 2023

Chilled Zucchini Soup With Lemon and Basil
Nico Schinco for The New York Times. Food Stylist: Barrett Washburne.
Total Time
15 minutes, plus optional chilling
Prep Time
10 minutes
Cook Time
5 minutes
Rating
4(720)
Notes
Read community notes

During the warmest days, there is no more welcome promise than a no-cook meal. A blender or food processor makes quick work of this peak summer zucchini soup, which requires no cooking and is best served chilled. Cashews thicken the soup while adding a creamy silkiness and a gentle sweetness. Since taste buds don't register the flavors of cold foods as well as warm ones, chilled soups require generous seasonings. Here, the mellow raw zucchini is bolstered by the hefty use of garlic, miso, lemon juice and basil. The soup can be prepared ahead and chilled in the fridge for up to 24 hours or it can be served right away, chilled with ice cubes.

  • or to save this recipe.

  • Subscriber benefit: give recipes to anyone
    As a subscriber, you have 10 gift recipes to give each month. Anyone can view them - even nonsubscribers. Learn more.
  • Print Options


Advertisement


Ingredients

Yield:4 servings
  • 2pounds zucchini, trimmed and roughly chopped
  • 2cups basil leaves (about 2 ounces), plus more to serve
  • 1cup roasted cashews (5 ounces), plus ¼ cup chopped roasted cashews to serve
  • 6tablespoons lemon juice (from 2 lemons), plus more if needed
  • 3garlic cloves, roughly chopped
  • 2tablespoons white (shiro) miso
  • 2cups vegetable stock
  • Kosher salt and black pepper
  • Ice cubes (optional)
  • Extra-virgin olive oil, to serve
Ingredient Substitution Guide
Nutritional analysis per serving (4 servings)

376 calories; 28 grams fat; 5 grams saturated fat; 0 grams trans fat; 16 grams monounsaturated fat; 5 grams polyunsaturated fat; 27 grams carbohydrates; 5 grams dietary fiber; 9 grams sugars; 11 grams protein; 1022 milligrams sodium

Note: The information shown is Edamam’s estimate based on available ingredients and preparation. It should not be considered a substitute for a professional nutritionist’s advice.

Powered by

Preparation

  1. Step 1

    Place the zucchini, basil, cashews, lemon juice, garlic, miso, vegetable stock and 2 teaspoons salt in a blender or food processor and blitz until smooth and silky. Taste and check seasonings, adding more salt or lemon juice as needed.

  2. Step 2

    Chill in the refrigerator for at least 2 hours or serve immediately, transferring the soup to a bowl and adding a few ice cubes if needed. Top with chopped cashews, a drizzle of olive oil, black pepper and a few basil leaves.

Ratings

4 out of 5
720 user ratings
Your rating

or to rate this recipe.

Have you cooked this?

or to mark this recipe as cooked.

Private Notes

Leave a Private Note on this recipe and see it here.

Cooking Notes

This soup is delicious! Great way of using summer, zucchini, and basil. Adding mint takes it to the next level. Note to Cooking editors: it would be most helpful if you indicated the yield in cups rather than four servings. Who is to say how much is in a serving? If I knew this yielded 6 cups, I would’ve used a food processor instead of a blender. Using a blender, I had to do the recipe in multiple batches. From start to finish it took me 45 minutes to prepare this soup. Worth it.

In order to guarantee a creamy soup, first place the cashews, lemon juice and just 1/2 cup of the stock in the blender or food processor. Blend to create a creamy liquid. Then add zucchini, basil, garlic, miso, remaining vegetable stock and 1-2 teaspoons salt in the blender or food processor.

David, I’d soak almonds for a few hours or overnight, remove the skins, and use the hydrated nuts in place of cashews. The soaking really softens and plumps the almonds.

This is a delicious soup and I actually liked the slight crunch of the toasted cashews..I did add crumbled feta cheese when serving to increase the protein. A worthy addition to the cold soup roster

Start with the toasted cashews and half of the broth to make a cashew cream, then add the rest of the ingredients if you want a creamy soup. Or just use your own home made cashew cream to taste.

This was delicious with my garden zucchini. I added in 1/2 avocado for some additional creaminess.

There is no way this soup will become creamy or silky. Flavor was good but def not silky no matter how much i blended.

I started in the food processor, which took all ingredients in one batch, but couldn't get it creamy enough. Moved to the Vitamix (in 2 batches) and it has exactly the texture I wanted. More dirty dishes, but don't think I'd have gotten the ingredients to mix properly if I'd started in the blender. Had a sample bowl - think it'll be fabulous once chilled! (P.s. Mine isn't as green as the photo either, even though most of my zukes had very dark skins. Oh well - tastes great!)

I'd suggest macadamia nuts or pistachios.

This was better than expected, actually quite delicious. I made it with half raw zucchini and half leftover zuke that had been grilled with olive oil, salt and pepper. Used plain water in place of veg broth, and three tablespoons pesto, which I had to use up, instead of fresh basil. Kept everything else the same and blended it all in a Vitamix. I wouldn’t say is was creamy, but it was smooth enough to be thoroughly enjoyable. Would def make it again when zucchini gets out of hand.

If you eat dairy, you could try something like a bit of sour cream or creme fraiche to add the creaminess I imagine. Silken tofu could be nice as well, and/or an avocado. If you don't mind the added step of having to cook, blending in some peeled boiled potatoes could be an option as well, though that defeats the purpose of it being basically no-cook.

I can eat pretty much any nuts other than cashews. I'd appreciate any suggestions as to what would be a substitute most in keeping with this dish. Thanks.

Thoughts on swapping cashews for soft tofu in this recipe? Thanks!

The flavor of this was good and I wanted to like it, but the texture is a far cry from creamy or smooth. Lengthy efforts to purée never quite rid it of its grittiness, a texture not unlike cream of wheat. I wonder if using raw instead of roasted cashews and peeling the zucchini would make a difference. I've been eating it with crumbled feta cheese and a little salsa macha.

Fantastic! Easy to make and wonderful on a hot night.

What a great way to use our over supply of garden zucchini. Excellent recipe. My only changes were to add one small jalapeno and a bit of fresh mint. My biggest recommendation is to make this a day ahead and refrigerate as that time really enhances the flavors.

Crowd pleaser, will makeagain. Followed the recipe (made a half batch). Only changes/specifics were Thai Basil, Meyer lemons, and chicken instead of veg broth. Used blender. Blending took a while but the soup came out creamy and smooth - served it immediately. My human test subjects liked it enough that they asked for the recipe. Given how quick and easy it is to make (hello minimal cleanup) and refreshing it is on a summer day I'll be making this again.

Delicious soup that is a perfect canvas for a variety of toppings! We loved radish sprouts, edamame & chopped cashews. Also, the soup begs for a bit of sriracha for a kick. Will repeat all summer long!

I started with the cashews, broth, and lemon juice in my Vitamix and had no problems with grittiness. Delicious!

This was delish. Used almond butter instead of cashews because it is not an allergen for me. Ran out of basil so used some mint to make up for it. Perfect summer meal.

Is there a non-nut substitute for the cashews for those with nut allergies?

No matter how long I ran the food processor the soup would not get smooth. The flavor is okay but i’ll probably not make this soup again

Wow, creamy deliciousness! (I made half the recipe and used raw cashews and chicken broth.) The funny thing was that for some reason, my refrigerator had gone wonky and froze the zucchini, so after I pureed the soup, it was already chilled and ready to serve!

Used mix of patty pan, summer squash & zucchini

are the roasted cashews salted or unsalted???

Yes! For the win! This was a big hit in our house. Tips from my fellow cooks were so helpful. I halved the recipe and used our Vitamix. Blended the cashews, lemon juice and 1/2 cup of the stock first. Had no issues with creaminess.

Could this be made without the nuts? I'm allergic to all but peanuts, which don't match this flavor profile.

Whoa. Made this with roasted almonds, because it’s what I had on hand, and I’m in love. Perfect for a sultry day.

I loved this. It turned out very smooth, despite so many comments to the contrary, and I’m wondering if maybe it has to do with the power and/or size of the blender? At any rate, was very easy and creamy in my 8-cup NutriBullet. Also I added a handful of mint leaves on top of the called-for amount of basil and I really liked that combo.

Served for four on a hot summer day. Everyone loved it. Will definitely make again!

Private notes are only visible to you.

Advertisement

or to save this recipe.