Ingredients
Method
- Place the onion, carrots, garlic, tomatoes with their juice, broth, tomato paste, salt, pepper and sugar in a 6-quart crockpot.
- Cover and cook on low for 6 hours until the carrots are completely soft.
- Blend the soup in batches or with an immersion blender until smooth.
- Stir in the cream and butter and cook on high for 15 minutes until steaming but not boiling.
- Tear in the basil leaves, blend briefly again, and serve while the basil stays bright.