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Slow Cooker Tomato Soup Recipe

4.8 from 95 reviews

This Slow Cooker Tomato Soup is a comforting and creamy recipe made with crushed tomatoes, garlic, chicken broth, and fresh or dried basil. Slow-cooked to develop rich flavors, it’s finished with butter and heavy cream, making it a perfect warm bowl of homemade goodness for any day.

Ingredients

Scale

Soup Base

  • 2 cans crushed tomatoes (28 ounces each)
  • 1 tablespoon crushed garlic
  • 14 ounce can chicken broth (or 2 cups vegetable broth)
  • 1520 fresh basil leaves OR 1 tablespoon dried basil leaves

Flavorings and Finish

  • 2 tablespoons sugar
  • ⅓ cup butter (cut into ½ inch cubes)
  • 1 cup heavy cream

Instructions

  1. Combine Ingredients in Slow Cooker: Pour the crushed tomatoes, broth, and garlic into the crock pot. If using dried basil, add it now as well. Secure the lid and set the slow cooker to low heat for 4 to 6 hours depending on your schedule.
  2. Add Sugar and Butter: Once the soup has cooked, open the lid and stir in the sugar until dissolved. Then add the cubed butter, stirring continuously until the butter has fully melted and the soup is smooth.
  3. Incorporate Cream and Fresh Basil: Slowly pour in the heavy cream while stirring continuously to ensure it is fully blended. If using fresh basil, stir it into the soup at this stage to infuse fresh herb flavor.
  4. Serve: Ladle the soup into bowls and serve hot. Optionally, garnish with a dollop of pesto, croutons, and a sprinkle of parmesan cheese for added texture and flavor.

Notes

  • For a vegetarian version, substitute chicken broth with vegetable broth.
  • You can adjust the sugar amount based on the acidity of the tomatoes to balance flavor.
  • Fresh basil provides a brighter flavor, while dried basil offers convenience and a deeper herbaceous note.
  • Use full-fat heavy cream for a richer, creamier soup.
  • This soup can be stored in the refrigerator for up to 3 days or frozen for up to 2 months.

Keywords: slow cooker tomato soup, creamy tomato soup, easy slow cooker soup, tomato basil soup, comfort food