3 medium tomatoes, peeled, seeded, and chopped (1 1/2 cups) 1 fresh serrano chile peppers, seeded and finely chopped (tip, page xx) ⅓ cup water 1 teaspoon packed brown sugar 1 tablespoon snipped fresh cilantro 1 tablespoon lemon juice ¼ cup salad oil Salt Freshly ground black pepper
