1 C. chopped onion
25 garlic cloves, peeled (about 3 heads)
5 large red tomatoes, each cut into 8 wedges (about 3 pounds)
1/2 C. water
1 T. balsamic vinegar
Pepper to taste

Preheat oven to 450 degrees. Combine first 3 ingredients in a 13 x 9-inch baking dish and drizzle with olive oil. Bake at 450 degrees for 20 minutes. Combine tomato mixture and remaining ingredients in a large saucepan and bring to boil. Cook over high heat 10 minutes, stirring frequently. Place mixture in a blender or food processor and process until desired consistency. Can be served over pasta, fish or any recipe that calls for marinara sauce.