Instant Pot Tomato Soup (Keto)
Instant Pot tomato soup is a creamy soup made mostly with pantry staples in 30 minutes. It is keto, healthy, vegetarian, and super comforting, making a great pair for grilled cheese sandwiches.
- Prep time
- 5 min
- Cook time
- 20 min
- Yield
- 4 servings
- Difficulty
- HARD
Ingredients
Quantities are shown as originally provided.
- 1 TBSP extra virgin olive oil (or regular olive oil)
- 1 sweet onion (diced (e.g. Vidalia))
- 2 cloves garlic (minced)
- 1 cup of canned fire-roasted tomatoes (or you can roast fresh tomatoes)
- 1/3 cup low-sodium vegetable broth (or chicken broth if you prefer)
- 16 oz marinara sauce (choose one without added sugar such as RAO's, or homemade Pomodoro sauce)
- 2 tsp granular sweetener (e.g. Erythritol)
- 1 TBSP tomato paste (not tomato sauce)
- 1/4 cup chopped fresh basil (preferred, or 1/2 TBSP dried basil plus extra to garnish)
- 1/2 tsp Italian seasoning
- Salt and ground black pepper to taste
- 1/3 cup heavy cream (or enough to get to your ideal thickness. If you prefer, use Greek yogurt)
- 2 oz cream cheese (softened)
- 1/4 tsp xanthan gum (You can omit it if you don't have it and add extra 1-2 oz cream cheese to the soup)
Instructions
- 1
Turn on the sauté function of your Instant Pot and let it heat for about 2 minutes. Sauté the onion for 3-4 minutes, stirring now and then, until tender. Add the garlic and cook for 30 seconds while stirring.
- 2
Stir in the roasted tomatoes and then the broth to deglaze any browned bits of the onion from the pot.
- 3
Add the marinara sauce, sweetener, tomato paste, and seasonings (basil, Italian seasoning, salt, and pepper).
- 4
Turn off the sauté function. Lock the lid, turn the valve to sealing, and set it to HIGH pressure for 15 minutes. After cooking, let the pressure release naturally, for about 5-10 minutes.
- 5
Unplug the Instant Pot and add the cream, cream cheese, and xanthan gum. Use a handheld immersion blender to puree the tomato soup until smooth. Alternatively, you can blend the soup, in 2 batches, either in your blender or food processor.
- 6
Adjust the broth and seasoning to taste to get to your ideal thickness and flavor.
- 7
Serve hot with a melty low-carb grilled cheese sandwich.