Yield: 6 cups.
1 cup sweet onions, chopped
3 tablespoons olive oil
2 cups chicken stock
1 (35-ounce) can whole plum tomatoes
2 tablespoons tomato paste
3 cloves garlic, smashed
2 teaspoons kosher salt
2 teaspoons brown sugar
¼ cup basil pesto
Parmesan cheese, grated (optional)
Croutons (optional)
In a stockpot, add olive oil and stir in onions. On medium heat, cook onions for 5 minutes. Stir in chicken stock, tomatoes, and tomato paste, and bring to a boil. Add garlic, salt, and brown sugar. Cover pot and simmer for 10 minutes. In small batches, add soup to a blender and blend to smooth consistency. Return soup to the pot and add basil pesto. Simmer for 5 minutes. Serve immediately. Garnish with freshly grated Parmesan and croutons.