Spanish Gazpacho-Inspired Cold Oat Soup
A chilled savory oat soup that captures the bright, tangy essence of Spanish gazpacho. Creamy rolled oats are cooked with tomato juice and vegetable broth, then chilled and topped with crisp cucumber, bell pepper, and a drizzle of sherry vinegar. Served cold with crusty bread, it's a refreshing and satisfying breakfast or light lunch that's lighter than traditional gazpacho but just as flavorful.
- Prep
- 15 min
- Cook
- 10 min
- Wait
- 2 hr
- Total
- 2 hr 25 min
- Makes
- 4 servings (about 1¼ cups each)
Steps
Before you start
- Read through the recipe—you'll cook the oat base but serve it chilled, so plan at least 2 hours ahead
- Chill your serving bowls in the refrigerator for 30 minutes before serving for the best cold experience
- Have all vegetables prepped and ready before you start cooking
Toast the oats
- Place a medium saucepan (3 to 4 quarts) over medium heat.
- Add the rolled oats and stir constantly for 2 to 3 minutes until they smell nutty and are very lightly golden.
- This step deepens their flavor and keeps them from becoming gummy when cooked.
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Ready when: Oats smell nutty and are light golden in color
Tip: Don't skip toasting—it prevents a starchy, bland soup and adds depth.
Add broth and tomato juice
- Pour the warm vegetable broth and tomato juice into the pan with the toasted oats.
- Stir well with a whisk to break up any clumps.
- The mixture will bubble slightly and the oats will begin to soften.
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Ready when: Mixture is well combined with no lumps
Tip: Whisk thoroughly to prevent lumps from forming in the soup base.
Simmer until creamy
- Reduce heat to medium-low and simmer gently for 8 to 10 minutes, stirring occasionally, until the oats have fully softened and thickened the broth slightly.
- The soup should have a creamy, porridge-like consistency but still be pourable.
- It will continue to thicken slightly as it cools.
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Ready when: Oats are tender and soup has a creamy consistency without being too thick
Tip: Stir every 2–3 minutes to prevent the bottom from sticking and burning.
Season the base
- Remove the pan from heat.
- Stir in the sherry vinegar, extra-virgin olive oil, and minced garlic (if using).
- Taste and season with sea salt and freshly ground black pepper.
- The soup should taste bright and savory, with a subtle tang from the vinegar and the deep sweetness of tomato.
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Ready when: Flavors are balanced and well combined
Tip: Add salt gradually and taste as you go—tomato juice already contains some sodium.
Cool completely
- Transfer the soup to an airtight container or cover the saucepan.
- Let it cool to room temperature for about 15 to 20 minutes, then refrigerate for at least 2 hours until chilled through.
- The soup will thicken slightly more as it cools.
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Ready when: Soup is well chilled and has thickened to a creamy consistency
Tip: If the chilled soup is too thick, whisk in a splash of tomato juice or broth to reach your preferred consistency.
Prepare garnishes
- While the soup chills, prepare the cucumber and red pepper garnishes.
- Dice them into small pieces (about ¼-inch cubes) so they stay crisp and add pleasant texture and color to each spoonful.
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Ready when: Vegetables are neatly diced and ready to serve
Tip: If prepping ahead, store diced vegetables in separate small bowls covered with plastic wrap in the refrigerator.
Serve chilled
- Ladle the cold oat soup into chilled bowls.
- Top generously with the diced cucumber and red pepper.
- Drizzle with a little extra-virgin olive oil and sherry vinegar if desired.
- Serve with crusty bread on the side for dipping or alongside the bowl.
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Ready when: Soup is served cold with fresh toppings
Tip: Chill your serving bowls ahead of time so the soup stays cold longer and the experience feels refreshing.
Good to know
Tips
- Toasting the oats is essential—it prevents the soup from tasting starchy and gives it a deeper, more complex flavor that matches the gazpacho inspiration.
- Chill your serving bowls in the freezer for 15–30 minutes before serving to keep the soup cold longer and enhance the refreshing quality.
- Taste the chilled soup before serving; cold temperatures mute flavors, so you may need to add a touch more salt, vinegar, or olive oil than you'd expect from the warm version.
- For a creamier texture, blend half the chilled soup until smooth, then stir it back into the remaining chunky soup for a velvety consistency with interesting texture.
Make ahead
You can prepare the oat soup base up to 2 days ahead. Store it in an airtight container in the refrigerator, and prepare the fresh vegetable garnishes the morning you serve. Do not add the cucumber and pepper garnishes until just before serving, as they will soften if stored in the soup.
Storage & reheating
Refrigerator: Store the oat soup base in an airtight container for up to 3 days. The soup will continue to thicken; thin it with tomato juice or broth if needed before serving. Freezer: Not recommended, as the texture becomes grainy after freezing. Room temperature: Do not leave the soup at room temperature for more than 1 hour. To reheat: Stir in additional broth or tomato juice to reach your desired consistency and warm gently over medium-low heat on the stovetop for 3 to 4 minutes, stirring occasionally, until just warm—do not boil.
Substitutions
- tomato juice → 8 oz (240 ml) canned crushed tomatoes mixed with 1 cup (240 ml) vegetable broth, strained for a smoother soup. For a more rustic texture and if you prefer fresh tomato flavor; strain to remove seeds and skins unless you like a chunkier soup.
- sherry vinegar → Red wine vinegar or white wine vinegar. Use the same amount; sherry vinegar is milder and slightly sweet, while wine vinegars are more assertive. Start with 1½ tablespoons if using red wine vinegar and adjust to taste.
- red bell pepper → Yellow bell pepper or a mix of red and yellow peppers. Yellow peppers are slightly sweeter; the choice is purely about color preference and flavor balance.
- rolled oats (old-fashioned) → Steel-cut oats (use ¾ cup / 75 g and increase simmer time to 15–18 minutes). Steel-cut oats create a slightly chunkier texture and nuttier flavor. They require longer cooking; test at 15 minutes and add more time if needed.
