You are here: Home » Recipes » Balsamic Roasted Tomato Sauce Balsamic Roasted Tomato Sauce Recipe by RelishKitchen Tested Yield 5 cups Prep 15 mins Cook 60 mins Balsamic vinegar and blackened tomatoes give this sauce depth and complexity. Mark Boughton Photography / styling by Teresa Blackburn PrintEmail Use the best vine-ripened tomatoes you can find for this sauce. Ingredients 2 1/2 pounds ripe heirloom tomatoes, cored3/4 cup olive oil1/4 cup balsamic vinegar1/2 cup sliced shallots6 cloves garlic, sliced1/4 cup chopped fresh oregano1 1/2 cups chopped fresh basil1 teaspoon coarse salt -- Freshly ground black pepper Instructions Preheat oven to 400F. Combine all ingredients in a large bowl. Toss to mix well. Transfer to a roasting pan. Roast 1 hour, until tomatoes are blackened. Transfer to a food processor. Process until well blended. Recipe courtesy of St. Olaf College's STOWGROW.