This tomato cheddar soup with grilled cheese croutons is exactly what we crave on a cold rainy day. It's an easy-to-make recipe that uses mostly pantry ingredients, and it's ready in just 30 minutes!
Heat the olive oil in a large pot over medium-high heat. Add the onion and cook it until it looks transparent, about 3 minutes. Add the garlic and cook for 1 more minute.
2 tablespoons olive oil, 1 medium onion, 3 cloves garlic
Stir the tomato paste into the onions then let it cook for about 3 minutes, until it begins to smell sweet. Then add the fire-roasted tomatoes, stock, thyme, salt, and pepper to the pot and bring the pot to a boil. Reduce the heat to low, cover the pot, and let it simmer for 10 minutes.
Blend the soup using either a blender or an immersion blender until it's smooth. See the notes if you're using a regular blender.
Stir the cheese into the pot a few handfuls at a time. Stir in the milk or cream. Taste the soup and add more salt and pepper, if you'd like.
6 ounces sharp cheddar cheese, ½ cup whole milk or cream
Notes
During recipe testing, we found that some less-expensive cheddar cheese didn't melt into the soup as well as better-quality cheese. If your soup doesn't look silky smooth after adding the cheese, blend it one more time.