Creamy Tomato-Basil Soup

1/4 cup butter
1/4 cup olive oil
1 1/2 cups chopped onions
2 cloves garlic, minced
3 pounds tomatoes - peeled, seeded and quartered*
1/2 cup chopped fresh basil leaves
salt and ground black pepper to taste
1 quart chicken broth
1 cup heavy cream
8 sprigs fresh basil for garnish

Directions
1. Heat the butter and olive oil in a large pot over medium heat. Stir in onions and garlic and cook until tender. Mix in tomatoes and chopped basil. Season with salt and pepper. Pour in the chicken broth, reduce heat to low, and continue cooking 15 minutes.
2. Transfer soup to a blender (or use an immersion hand blender), and blend until smooth. Return to the pot, and bring to a boil. Reduce heat to low, and gradually mix in the heavy cream. Garnish each serving with a sprig of basil.

*If using canned tomatoes, use 48 oz of whole tomatoes, being sure to seed and quarter them. You may need to add up to 2 tbs of sugar.

Notes: When I make this for someone other than my family, I stick to this recipe. If I make it for us , I add a little spice. When heating the butter and olive oil, I add a little crushed red pepper (maybe less than 1/8 tsp). Be very careful when blending the soup, only fill the blender half full. When putting the lid on, don't seal the feed tube (the little hole in the lid), just lightly hold the cover on.