5 Ingredient Tomato Soup Recipe
Introduction
This 5 Ingredient Tomato Soup is a simple, comforting dish perfect for any day. With minimal ingredients and easy steps, it delivers rich flavor and creamy texture without fuss. It’s a great homemade meal to enjoy with your favorite sides.

Ingredients
- Two 28-ounce cans San Marzano tomatoes (whole or crushed)
- 1 stick (8 tablespoons) salted butter
- 1 yellow onion, peeled and cut into 4 chunks
- 3-4 cloves smashed garlic (optional)
- 1 1/2 teaspoons salt
Instructions
- Step 1: In a large saucepan or Dutch oven, combine the tomatoes, butter, onion chunks, garlic (if using), and salt.
- Step 2: Bring the mixture to a low bubble over medium heat, then reduce to medium-low. Partially cover with a lid and simmer for 45 minutes, stirring every 15 minutes to prevent burning.
- Step 3: Use tongs to remove the onion chunks from the pot. You may leave the garlic cloves if you like a stronger garlic flavor, or remove them if preferred.
- Step 4: Blend the soup using an immersion blender until smooth and creamy. Adjust the thickness by adding milk, water, broth, or cream if desired.
- Step 5: Serve hot with your choice of garlic bread, grilled cheese, croutons, crackers, or pesto for extra flavor.
Tips & Variations
- Use crushed San Marzano tomatoes for a slightly chunkier texture, or whole tomatoes for a silkier soup.
- For a dairy-free version, replace butter with olive oil and use plant-based milk or broth to thin the soup.
- Add fresh basil or a pinch of red pepper flakes when blending for extra aroma and a mild kick.
Storage
Store leftover soup in an airtight container in the refrigerator for up to 4 days. Reheat gently on the stove over low heat or in the microwave, stirring occasionally to maintain a smooth texture.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use fresh tomatoes instead of canned?
Yes, you can use about 3 pounds of fresh ripe tomatoes, peeled and chopped. Cook them down similarly, but the cooking time may increase to fully break down the tomatoes.
Is the garlic necessary?
Garlic is optional and adds a nice aroma and flavor, but the soup is delicious without it as well. You can adjust according to your preference.
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5 Ingredient Tomato Soup Recipe
- Total Time: 55 minutes
- Yield: 6 servings 1x
- Diet: Vegetarian
Description
This simple and comforting 5 Ingredient Tomato Soup recipe uses canned San Marzano tomatoes, butter, onion, garlic, and salt to create a rich and flavorful soup perfect for a cozy meal. Slow-simmered and blended to a smooth consistency, this tomato soup is easy to prepare and pairs wonderfully with grilled cheese or crusty bread.
Ingredients
Soup Ingredients
- Two 28-ounce cans San Marzano tomatoes (whole or crushed)
- 1 stick (8 tablespoons) salted butter
- 1 yellow onion, peeled and cut into 4 chunks
- 3–4 cloves smashed garlic (optional)
- 1 1/2 teaspoons salt
Instructions
- Make the Tomato Soup: Place the canned tomatoes, butter, and onion chunks into a large saucepan or Dutch oven. Set the heat to bring the mixture up to a low bubble, then reduce the heat to medium-low and partially cover with a lid.
- Simmer: Let the soup simmer gently for 45 minutes. Stir every 15 minutes to prevent the bottom from scorching and ensure even cooking.
- Remove Onion Chunks: After simmering, use tongs to remove the onion pieces from the soup. You may leave the garlic cloves in the soup according to your preference.
- Blend the Soup: Using an immersion blender, blend the soup until it reaches your desired smoothness. Taste the soup and adjust seasoning as needed. If desired, thin the soup with a splash of milk, water, broth, or cream, though it can be served as is.
- Serve: Ladle the tomato soup into bowls and serve with your favorite accompaniments such as garlic bread, grilled cheese sandwiches, croutons, crackers, or a drizzle of pesto.
Notes
- Using canned San Marzano tomatoes adds a sweeter, less acidic flavor to the soup.
- Butter adds richness to the soup, but you can substitute with oil for a dairy-free version.
- Simmering the soup slowly enhances the tomato flavor.
- Immersion blender allows easy blending directly in the pot for convenience.
- Adjust salt to taste after blending for best results.
- The soup can be thinned to your preferred consistency with liquids such as broth or milk.
- Garlic is optional and can be omitted if desired.
- Prep Time: 10 minutes
- Cook Time: 45 minutes
- Category: Soup
- Method: Stovetop
- Cuisine: Italian
Keywords: tomato soup, easy tomato soup, 5 ingredient soup, homemade tomato soup, simple soup recipe, Italian soup

