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Keto Classic Gazpacho (Low-Carb Chilled Tomato Soup)

This Keto Classic Gazpacho is the soup I turn to when it’s too hot to cook and I still want something that feels like a real meal. Ripe tomatoes, cucumber, and bell pepper blend into a soup that’s cold, bright, and ready with almost no effort.

Photo of a refreshing Classic Gazpacho.

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I make this one in the height of summer, when tomatoes actually taste like something and the last thing I want is a hot stove between me and dinner. It chills for a couple of hours before serving, which makes it a genuinely good make-ahead option for a hot week.

Let it sit overnight if you can. The flavor the next day is noticeably better than the flavor an hour after blending.

Chef Jenn’s Take on Keto Classic Gazpacho

Most gazpacho recipes taste one-dimensional, either too acidic from the vinegar or too flat because the tomatoes weren’t ripe enough to carry the dish on their own. Gazpacho lives and dies by the quality of the tomatoes going into it.

Chilling this for at least two hours, ideally overnight, is what actually pulls the flavors together. Straight off the blender it tastes sharp and a little disjointed. Given time in the fridge, the vinegar mellows and the tomato flavor rounds out into something that tastes intentional instead of thrown together.

Photo of delicious Classic Gazpacho.

What You’ll Love About Keto Classic Gazpacho

  • It requires zero cooking, which matters most on the days a hot kitchen is the last thing you want.
  • It’s genuinely better the day after you make it, so it’s one of the rare dishes where getting ahead of dinner actually improves the result.
  • It works as a light lunch on its own or as a colorful starter before a bigger meal, so one batch covers two different uses.

Ingredients

Ingredients for Classic Gazpacho.
  • Ripe tomatoes – Roma tomatoes work well and have fewer seeds. Use the ripest ones you can find, they carry the whole dish.
  • Cucumber – Or about half an English cucumber. Skip peeling if you go with English.
  • Red bell pepper
  • Red onion
  • Garlic clove – Fresh only, it makes a real difference here.
  • Olive oil
  • Red wine vinegar
  • Salt
  • Black pepper
  • Smoked paprika – Use the hot version if you want a bit of a kick.
  • Ground cumin – Optional.
  • Tomato juice – Low-sodium lets you control the salt level better.
  • Lemon juice
  • Sugar
  • Tabasco sauce – Add more if you like it spicier.
  • Fresh basil or parsley – For garnish.

Optional garnishes

  • Diced cucumber
  • Tomato
  • Red bell pepper

How to Make Classic Gazpacho

Scroll down for the full recipe card with exact measurements and printable instructions.

Combine the tomatoes, cucumber, bell pepper, red onion, garlic, olive oil, red wine vinegar, salt, pepper, smoked paprika, cumin if using, tomato juice, lemon juice, sweetener, and Tabasco in a blender.

Step in making Classic Gazpacho.

Blend until completely smooth and uniform. If you want more texture instead of a fully smooth soup, pulse a few times rather than blending continuously.

Blending ingredients for Classic Gazpacho.

Transfer to the fridge and chill for a minimum of 2 hours so the flavors have time to develop. Overnight gives you an even deeper flavor if you have the time.

Once chilled, taste and adjust the seasoning, adding more salt, vinegar, or hot sauce if it needs it.

Making Classic Gazpacho.

Serve cold with a sprinkle of chopped herbs and any optional diced vegetables. A drizzle of extra olive oil on top finishes it off.

A bowl of classic gazpacho topped with diced cucumber, tomato, and herbs sits next to a striped cloth napkin and a spoon.

Make It a Meal

I serve this as a starter before Baked Pesto Salmon when I want a light, colorful opener to a summer dinner. Pair it with Classic Caprese Salad for a full Mediterranean-style lunch, or serve it alongside Mediterranean Tuna Salad if you want a protein-forward meal built entirely around cold, no-cook dishes.

Refreshing and delicious Classic Gazpacho.

Storage

Store leftovers in a tightly sealed container in the fridge for up to 3 days. Give it a good stir and taste before serving again, adjusting the seasoning if needed. This doesn’t freeze well; the texture suffers once thawed.

FREQUENTLY ASKED QUESTIONS

Can I make gazpacho ahead of a party?

Yes, and it’s actually better that way. The flavors deepen the longer it sits, so making it the day before or even the morning of works well.

Why did my gazpacho turn out watery instead of thick?

This usually comes down to the tomatoes. Watery or underripe tomatoes make a thinner soup, so use the ripest ones you can find for the best body and flavor.

Can I strain the soup for a smoother texture?

Yes, running the blended soup through a fine mesh sieve removes any remaining seeds or pulp for an extra-smooth, restaurant-style texture.

Is this gazpacho very spicy?

As written, it has a mild kick from the Tabasco and optional hot smoked paprika. Add more of either, or a pinch of cayenne, if you want more heat.

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Classic Gazpacho

Classic Gazpacho is a refreshing, chilled tomato-based soup made with fresh vegetables like cucumbers, peppers, and onions. Blended with olive oil, garlic, and a splash of vinegar, this vibrant Spanish dish is perfect for hot summer days and easy no-cook meals.
Course Appetizer, Soup
Cuisine Mediterranean, spanish
Keyword cold tomato soup, keto classic gazpacho, keto summer soup, low-carb gazpacho, Spanish gazpacho
Prep Time 15 minutes
Chilling Time 2 hours
Total Time 2 hours 15 minutes
Servings 6 servings
Calories 113kcal
Author Chef Jenn

Ingredients

  • 2 pounds ripe tomatoes cored and chopped
  • 1 small cucumber peeled, seeded, and chopped
  • 1 small red bell pepper seeded and coarsely chopped
  • ½ cup red onion diced
  • 1 garlic clove minced
  • 3 tablespoons olive oil
  • 2 tablespoons red wine vinegar
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • ½ teaspoon smoked paprika
  • ½ teaspoon cumin optional
  • 1 cup tomato juice
  • 1 tablespoon lemon juice
  • ½ teaspoon sugar
  • 1 teaspoon Tabasco sauce or more to taste
  • fresh basil or parsley chopped, for garnish

Optional garnishes

  • cucumber diced
  • tomato
  • red bell pepper

Instructions

  • Combine the tomatoes, cucumber, bell pepper, red onion, garlic, olive oil, red wine vinegar, salt, pepper, smoked paprika, cumin (if using), tomato juice, lemon juice, sugar, and Tabasco in a blender.
  • Blend everything until the mixture is completely smooth and uniform.
  • Transfer the gazpacho to the fridge and chill for a minimum of 2 hours so the flavors can fully develop.
  • Once chilled, taste the soup and adjust the seasoning—add more salt, vinegar, or hot sauce if you think it needs it.
  • Serve cold with a sprinkle of chopped herbs and optional diced vegetables. A drizzle of extra olive oil on top is a nice touch if you’re into that.

Notes

Chef Jenn’s Tips

  • Chill overnight if you can. The flavor an hour after blending is noticeably sharper and less balanced than it is the next day.
  • Use the ripest tomatoes you can find. Underripe or watery tomatoes make a thinner, flatter-tasting soup no amount of seasoning can fully fix.

Nutrition

Serving: 1cup | Calories: 113kcal | Carbohydrates: 11g | Protein: 2g | Fat: 7g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Sodium: 419mg | Potassium: 549mg | Fiber: 3g | Sugar: 7g | Vitamin A: 1934IU | Vitamin C: 47mg | Calcium: 31mg | Iron: 1mg | Net Carbohydrates: 8g

A Note on Nutritional Information

Nutritional information for this recipe is provided as a courtesy and is calculated based on available online ingredient information. It is only an approximate value. The accuracy of the nutritional information for any recipe on this site cannot be guaranteed. Erythritol carbs (sugar substitutes) are not included in the carbohydrate counts as they have been shown not to impact blood sugar, and they have zero calories and zero carbs. Net carbs are the total carbs minus fiber.

Jenn

Hi, I’m Jenn!

I’m a cookbook author (Keto Soup Cookbook and Keto Diabetic Cookbook and Meal Plan) as well as a retired chef, recipe developer, and writer of this blog (that’s a lot of hats!). I embarked on a journey to create foodie-worthy Keto-friendly meals that any home cook can be proud of! No matter if you’re low-carb, no-carb, dirty, or strict Keto, there are recipes in Keto Cooking Wins for you and your family. Read more...

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