Ingredients
Equipment
Method
- Melt the butter in a large saucepan or Dutch oven over medium heat.
- Add the onion wedges, canned tomatoes with their juice, water or broth, and salt.
- Bring to a simmer and cook uncovered for about 40 minutes, stirring occasionally.
- Use an immersion blender to blend the soup until smooth. You can also use a regular blender in batches. Be careful when blending hot liquids.
- Taste and adjust seasoning with more salt if needed. Serve hot with your favorite bread or grilled cheese.
Notes
To make this soup vegan, replace butter with plant-based butter or olive oil. For a creamy variation, stir in a splash of cream after blending. If using fresh tomatoes, use about 2 pounds (10 to 12 medium tomatoes) and skip peeling. Store leftovers in the fridge for up to 3 days or freeze for up to 3 months.