This vibrant and flavorful rainbow roasted pepper soup is a feast for both the eyes and the palate. Combining the sweetness of red, yellow, orange, and green bell peppers with the savory notes of onion and garlic, this soup is perfect for any season. The addition of paprika and optional heavy cream adds depth and richness to the dish.
Most of the ingredients in this recipe are common pantry staples, but you may need to pick up a few items from the supermarket. Make sure to get a variety of bell peppers in different colors for the full rainbow effect. If you don't already have vegetable broth or heavy cream at home, you'll need to grab those as well. Paprika is another key ingredient that adds a smoky flavor to the soup.

Ingredients For Rainbow Roasted Pepper Soup
Bell peppers: These come in various colors like red, yellow, orange, and green, each adding a unique flavor and vibrant color to the soup.
Onion: Adds a sweet and savory base to the soup.
Garlic: Provides a robust and aromatic flavor.
Vegetable broth: The liquid base that brings all the flavors together.
Olive oil: Used for roasting the peppers and sautéing the onions and garlic.
Salt: Enhances the overall flavor of the soup.
Black pepper: Adds a bit of heat and depth to the flavor.
Paprika: Adds a smoky and slightly spicy flavor.
Heavy cream: Optional, but adds a rich and creamy texture to the soup.
Technique Tip for This Recipe
Roasting the bell peppers until their skins are charred not only enhances their natural sweetness but also makes them easier to peel. To peel them effortlessly, place the roasted peppers in a bowl and cover it with plastic wrap for about 10 minutes. The steam will help loosen the skins, making them easy to remove. This step ensures a smoother texture for your soup.
Suggested Side Dishes
Alternative Ingredients
bell peppers - Substitute with poblano peppers: Poblano peppers offer a slightly smoky flavor that can add depth to the soup, though they are less sweet than bell peppers.
chopped large onion - Substitute with leeks: Leeks provide a milder, slightly sweeter flavor compared to onions, which can be a nice variation in the soup.
minced garlic - Substitute with shallots: Shallots have a milder, more subtle garlic flavor and can add a touch of sweetness to the soup.
vegetable broth - Substitute with chicken broth: Chicken broth can add a richer flavor to the soup, though it will no longer be vegetarian.
olive oil - Substitute with coconut oil: Coconut oil can add a slight sweetness and a hint of coconut flavor, which can complement the peppers well.
salt - Substitute with soy sauce: Soy sauce can add a depth of umami flavor along with the saltiness, enhancing the overall taste of the soup.
black pepper - Substitute with white pepper: White pepper has a slightly different heat profile and can add a more subtle peppery flavor without the black specks.
paprika - Substitute with smoked paprika: Smoked paprika adds a smoky depth to the soup, enhancing the roasted flavor of the peppers.
heavy cream - Substitute with coconut milk: Coconut milk provides a creamy texture and a slight coconut flavor, making the soup dairy-free and adding a unique twist.
Other Alternative Recipes Similar to This Soup
How to Store or Freeze This Soup
Allow the Rainbow Roasted Pepper Soup to cool completely before storing. This helps prevent condensation, which can lead to a watery soup.
Transfer the cooled soup into airtight containers. For easy portioning, consider using individual serving-sized containers.
Label each container with the date and contents. This ensures you know exactly what’s inside and when it was made.
Store the containers in the refrigerator if you plan to consume the soup within 3-4 days. The flavors will meld beautifully, making the soup even more delicious.
For longer storage, place the containers in the freezer. The Rainbow Roasted Pepper Soup can be frozen for up to 3 months without losing its vibrant flavors.
When ready to enjoy, thaw the soup in the refrigerator overnight. This gradual thawing helps maintain the soup’s texture and taste.
Reheat the soup gently on the stovetop over medium heat, stirring occasionally. If the soup has thickened too much, add a splash of vegetable broth or water to reach your desired consistency.
If you’re in a hurry, you can also reheat the soup in the microwave. Use a microwave-safe container, cover it loosely, and heat in 1-minute intervals, stirring in between until hot.
For an extra touch of freshness, garnish the reheated soup with a drizzle of olive oil, a sprinkle of paprika, or a dollop of heavy cream before serving.
How to Reheat Leftovers
Stovetop Method:
- Pour the leftover soup into a pot.
- Heat over medium-low heat, stirring occasionally to ensure even heating.
- Once the soup is hot and steaming, it's ready to serve.
Microwave Method:
- Transfer the soup to a microwave-safe bowl.
- Cover the bowl with a microwave-safe lid or plate to prevent splatters.
- Heat on high for 2-3 minutes, stirring halfway through to ensure even heating.
- Check the temperature and heat for an additional 1-2 minutes if necessary.
Double Boiler Method:
- Fill the bottom part of a double boiler with water and bring it to a simmer.
- Pour the soup into the top part of the double boiler.
- Stir occasionally until the soup is heated through.
Oven Method:
- Preheat your oven to 350°F (175°C).
- Pour the soup into an oven-safe dish and cover it with foil.
- Heat for about 20-25 minutes, stirring halfway through to ensure even heating.
- Check the temperature and heat for an additional 5-10 minutes if necessary.
Slow Cooker Method:
- Pour the soup into the slow cooker.
- Set the slow cooker to low heat.
- Heat for 1-2 hours, stirring occasionally until the soup is hot.
Immersion Blender Method:
- Pour the soup into a pot.
- Use an immersion blender to blend the soup while heating over medium-low heat.
- Stir occasionally until the soup is hot and smooth.
Best Tools for This Recipe
Oven: To roast the bell peppers until their skins are charred.
Baking sheet: To place the halved and seeded bell peppers for roasting.
Knife: To halve and seed the bell peppers, and to chop the onion.
Cutting board: To provide a surface for chopping the vegetables.
Large pot: To sauté the onion and garlic, and to simmer the soup.
Blender: To puree the soup until smooth.
Wooden spoon: To stir the ingredients while cooking.
Measuring spoons: To measure out the olive oil, salt, black pepper, and paprika.
Measuring cup: To measure the vegetable broth and heavy cream.
Tongs: To handle the hot roasted peppers when removing their skins.
Ladle: To serve the soup into bowls.
How to Save Time on Making This Soup
Roast in advance: Roast the bell peppers ahead of time and store them in the fridge. This cuts down on prep time when you're ready to make the soup.
Use pre-chopped veggies: Buy pre-chopped onion and pre-minced garlic to save time on chopping.
Blender shortcut: Use an immersion blender directly in the pot to puree the soup, avoiding the need to transfer hot liquid to a blender.
Batch cooking: Double the recipe and freeze half for a quick meal later.

Rainbow Roasted Pepper Soup
Ingredients
Main Ingredients
- 4 bell peppers (red, yellow, orange, green) halved and seeded
- 1 large onion chopped
- 3 cloves garlic minced
- 4 cups vegetable broth
- 2 tablespoon olive oil
- 1 teaspoon salt to taste
- ½ teaspoon black pepper to taste
- 1 teaspoon paprika
- ½ cup heavy cream optional
Instructions
- Preheat your oven to 400°F (200°C).
- Place the halved and seeded bell peppers on a baking sheet, drizzle with olive oil, and roast for 20-25 minutes until the skins are charred.
- Remove the peppers from the oven and let them cool. Once cooled, peel off the skins.
- In a large pot, heat some olive oil over medium heat. Add the chopped onion and garlic, and sauté until softened.
- Add the roasted peppers, vegetable broth, salt, black pepper, and paprika to the pot. Bring to a boil, then reduce heat and simmer for 10 minutes.
- Use a blender to puree the soup until smooth. Return the soup to the pot and stir in the heavy cream if using. Adjust seasoning to taste.
- Serve hot and enjoy!
Nutritional Value
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