Ingredients
Method
- Sauté onions and garlic in olive oil over medium heat until translucent.
- Transfer the sautéed mixture to the slow cooker along with chopped tomatoes and vegetable broth. Stir gently.
- Season generously with salt and pepper.
- Cover and cook on low for 6 hours or high for 3 hours.
- Blend the soup until smooth using an immersion blender or countertop blender.
- Adjust seasoning if needed, then serve warm garnished with fresh basil.
