Fresh Tomato Soup with Basil

Ingredients (10)

• 3 Tablespoons olive oil
• 3 cups chopped sweet onions (About 2 large onions)
• 1 1/2 Tablespoons balsamic vinegar
• 2 teaspoons brown sugar
• 4 garlic cloves, minced
• 8 cups (about 4 lbs.) chopped tomatoes *see note
• 3 cups chicken or vegetable broth
• Salt and Pepper, to taste
• 2 Tablespoons chopped fresh basil, plus more for garnish
• Heavy cream, half and half, or coconut milk, if desired