This vibrant and flavorful rainbow roasted pepper soup is a feast for both the eyes and the palate. Combining the sweetness of roasted bell peppers with the savory depth of onion and garlic, this soup is perfect for any season. It's a delightful way to enjoy a variety of colorful vegetables in one comforting bowl.
While most of the ingredients in this recipe are common pantry staples, you might need to pick up a few items at the supermarket. The bell peppers come in four different colors: red, yellow, orange, and green. Make sure to get fresh, firm peppers for the best flavor. Additionally, if you don't usually stock heavy cream, you might want to grab some for an optional garnish that adds a rich, creamy finish to the soup.

Ingredients for Rainbow Roasted Pepper Soup
Bell peppers: These come in red, yellow, orange, and green varieties, adding both color and sweetness to the soup.
Olive oil: Used for roasting the peppers and sautéing the onions and garlic, adding a rich flavor.
Onion: Provides a savory base for the soup, enhancing the overall flavor.
Garlic: Adds a fragrant and slightly spicy note to the soup.
Vegetable broth: Forms the liquid base of the soup, making it both hearty and flavorful.
Salt: Enhances the natural flavors of the ingredients.
Black pepper: Adds a touch of heat and depth to the soup.
Paprika: Contributes a smoky, slightly sweet flavor that complements the roasted peppers.
Heavy cream: Optional for garnish, it adds a rich, creamy texture to the finished soup.
Technique Tip for This Soup
When roasting the bell peppers, make sure to place them skin-side up on the baking sheet. This allows the skins to char more evenly, making them easier to peel off later. Additionally, after removing the peppers from the oven, you can place them in a bowl and cover it with plastic wrap for about 10 minutes. This creates steam, which helps loosen the skins even further, making the peeling process quicker and more efficient.
Suggested Side Dishes
Alternative Ingredients
bell peppers (red, yellow, orange, green) - Substitute with poblano peppers: Poblano peppers offer a similar texture and can add a slightly smoky flavor to the soup.
olive oil - Substitute with avocado oil: Avocado oil has a similar smoke point and neutral flavor, making it a good alternative.
onion - Substitute with leek: Leeks provide a milder, slightly sweeter flavor that can complement the soup well.
garlic - Substitute with shallots: Shallots offer a milder, more nuanced flavor compared to garlic.
vegetable broth - Substitute with chicken broth: Chicken broth can add a richer flavor, though it will no longer be vegetarian.
salt - Substitute with soy sauce: Soy sauce can add a depth of umami flavor along with the necessary saltiness.
black pepper - Substitute with white pepper: White pepper provides a similar heat but with a slightly different flavor profile.
paprika - Substitute with cayenne pepper: Cayenne pepper adds a spicier kick, so use it sparingly.
heavy cream - Substitute with coconut milk: Coconut milk provides a creamy texture and a subtle sweetness, making it a good dairy-free alternative.
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 prevents condensation and maintains the soup's texture and flavor.
- Transfer the cooled soup into airtight containers. For convenience, consider portioning the soup into individual servings.
- Label each container with the date of preparation. This helps keep track of freshness and ensures you consume the soup within a safe timeframe.
- Store the containers in the refrigerator if you plan to consume the soup within 3-4 days. The cool environment will keep the vegetables and broth fresh.
- For longer storage, place the airtight containers in the freezer. The soup can be frozen for up to 3 months without significant loss of flavor or texture.
- When ready to enjoy, thaw the soup in the refrigerator overnight. This gradual thawing process helps maintain the soup's consistency.
- Reheat the soup on the stovetop over medium heat, stirring occasionally to ensure even heating. Alternatively, you can use a microwave, heating in short intervals and stirring in between.
- If the soup appears too thick after reheating, add a splash of vegetable broth or water to achieve the desired consistency.
- Garnish with a swirl of heavy cream or a sprinkle of fresh herbs just before serving to enhance the presentation and flavor.
How to Reheat Leftovers
Stovetop Method: Pour the soup into a pot and heat over medium-low heat. Stir occasionally to ensure even heating. Once the soup is hot, it’s ready to serve. This method helps maintain the soup's creamy texture and rich flavors.
Microwave Method: Transfer the soup to a microwave-safe bowl. Cover with a microwave-safe lid or plastic wrap, leaving a small vent for steam to escape. Heat on high for 2-3 minutes, stirring halfway through. Continue heating in 30-second intervals until the soup is thoroughly heated.
Oven Method: Preheat your oven to 350°F (175°C). Pour the soup into an oven-safe dish and cover with aluminum foil. Heat for about 20-25 minutes, or until the soup is hot. This method is great if you’re reheating a large batch.
Slow Cooker Method: Pour the soup into a slow cooker and set it to low. Heat for 1-2 hours, stirring occasionally. This method is perfect for keeping the soup warm for an extended period, especially during gatherings.
Double Boiler Method: Place the soup in a heatproof bowl and set it over a pot of simmering water. Stir occasionally until the soup is heated through. This gentle method prevents the soup from scorching and maintains its smooth consistency.
Best Tools for Making This Soup
Oven: Used to roast the bell peppers until they are charred and flavorful.
Baking sheet: Holds the bell peppers while they roast in the oven.
Knife: Essential for cutting the bell peppers into halves and chopping the onion.
Cutting board: Provides a safe surface for cutting and preparing the vegetables.
Pot: Used to sauté the onion and garlic, and to simmer the soup.
Blender: Purees the soup to a smooth consistency.
Spoon: Useful for stirring the ingredients while sautéing and simmering.
Measuring spoons: Ensures accurate measurement of olive oil, salt, black pepper, and paprika.
Ladle: Helps in serving the hot soup into bowls.
Peeler: Assists in peeling off the skins of the roasted bell peppers.
Tongs: Handy for handling the hot roasted bell peppers.
Serving bowls: Used to serve the finished soup.
Swirl stick: Optional tool for creating a decorative swirl with the heavy cream.
How to Save Time on Making This Soup
Pre-roast peppers: Roast and peel the bell peppers in advance, then store them in the fridge for up to 3 days.
Use jarred peppers: Substitute fresh bell peppers with jarred roasted peppers to skip the roasting step.
Chop efficiently: Use a food processor to quickly chop the onion and garlic.
Batch cooking: Double the recipe and freeze half for a quick meal later.
Immersion blender: Use an immersion blender directly in the pot to save time on transferring and cleaning.

Rainbow Roasted Pepper Soup
Ingredients
Main Ingredients
- 4 Bell Peppers (red, yellow, orange, green) cut into halves and deseeded
- 1 tablespoon Olive Oil
- 1 Onion chopped
- 2 cloves Garlic minced
- 4 cups Vegetable Broth
- 1 teaspoon Salt to taste
- ½ teaspoon Black Pepper to taste
- 1 teaspoon Paprika
- ½ cup Heavy Cream optional for garnish
Instructions
- Preheat your oven to 400°F (200°C).
- Place the bell peppers on a baking sheet, drizzle with olive oil, and roast for 20-25 minutes until charred.
- Remove the peppers from the oven, let them cool, then peel off the skins.
- In a pot, sauté the chopped onion and minced garlic until translucent.
- Add the roasted peppers, vegetable broth, salt, black pepper, and paprika. Bring to a boil, then simmer for 10 minutes.
- Use a blender to puree the soup until smooth. Return to the pot and heat through.
- Serve hot, optionally garnished with a swirl of heavy cream.
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