Cooking the vegetables at the high temperature of 500° caramelizes their natural sugars and deepens their flavor; the liquid poured over them ensures they won't burn. Prepare the soup up to two days ahead; reheat over medium heat before serving.
Cooking Light OCTOBER 2005
Preheat oven to 500°.
Combine 1/2 cup of broth, sugar, vinegar, and soy sauce in a small bowl. Place onion, garlic, and tomatoes in a 13 x 9-inch baking pan coated with cooking spray. Pour broth mixture over tomato mixture. Bake at 500° for 50 minutes or until vegetables are lightly browned.
Place tomato mixture in a blender. Add remaining 1/2 cup broth and half-and-half, and process until smooth. Strain mixture through a sieve into a bowl; discard solids. Garnish with cracked black pepper, if desired.
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