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Crockpot Tomato Basil Soup


  • Author: Avery
  • Total Time: 6–8 hours
  • Yield: 6 servings 1x
  • Diet: Vegetarian (easily dairy-free with coconut milk)

Description

Cozy, comforting, and effortlessly elegant, this Crockpot Tomato Basil Soup turns pantry staples into a rich, creamy bowl of bliss. Slow-cooked tomatoes, onions, garlic, and herbs meld together for hours, then get finished with velvety cream (or coconut milk) for a luxurious, restaurant-worthy texture without any hovering over the stove.


Ingredients

Scale
  • 2 cans (28 oz each) crushed tomatoes
  • 1 medium onion, chopped
  • 3 cloves garlic, minced
  • 4 cups vegetable broth
  • 1 tablespoon olive oil
  • 1 tablespoon sugar
  • 1 teaspoon dried basil
  • 1 teaspoon dried oregano
  • Salt and pepper, to taste
  • 1 cup heavy cream (or coconut milk for a dairy-free option)
  • Fresh basil leaves, for garnish

Instructions

  1. In a crockpot, combine the crushed tomatoes, chopped onion, minced garlic, vegetable broth, olive oil, sugar, dried basil, dried oregano, salt, and pepper. Stir well to evenly distribute all the ingredients.
  2. Cover the crockpot and cook on LOW for 6–8 hours or on HIGH for 3–4 hours, until the onions are very soft and the flavors have melded.
  3. When the cooking time is complete, use an immersion blender directly in the crockpot to puree the soup until smooth. For a chunkier texture, blend only about half of the soup.
  4. Stir in the heavy cream (or coconut milk) until fully incorporated and the soup turns creamy and slightly lighter in color.
  5. Cover and let the soup heat through on LOW for an additional 10–15 minutes, just until warmed and steamy but not boiling.
  6. Taste and adjust seasoning with additional salt and pepper if needed. Ladle into bowls and garnish with fresh basil leaves before serving.

Notes

  • Use low-sodium vegetable broth if you want more control over the salt level.
  • If using coconut milk, choose full-fat for the creamiest texture and a subtle coconut note.
  • This soup thickens as it cools; add a splash of broth or water when reheating if you prefer a looser consistency.
  • Taste before adding extra sugar; some brands of tomatoes are naturally sweeter than others.
  • Prep Time: 10 minutes
  • Cook Time: 6–8 hours on LOW (or 3–4 hours on HIGH)
  • Category: Soup
  • Method: Slow Cooker / Crockpot
  • Cuisine: American-inspired

Nutrition

  • Serving Size: 1 serving (about 1 1/2 cups)
  • Calories: 320 kcal
  • Sugar: 10 g (approx.)
  • Sodium: 800 mg (approx., will vary with broth and added salt)
  • Fat: 22 g (approx.)
  • Saturated Fat: 12 g (approx.)
  • Unsaturated Fat: 9 g (approx.)
  • Trans Fat: 0 g
  • Carbohydrates: 26 g (approx.)
  • Fiber: 5 g (approx.)
  • Protein: 5 g (approx.)
  • Cholesterol: 65 mg (approx., with heavy cream)

Keywords: crockpot tomato basil soup, slow cooker tomato soup, creamy tomato basil soup, easy weeknight soup, vegetarian crockpot soup