1
Adjust rack to middle and top positions and preheat oven to 400 degrees. Wash and dry all produce. Sprinkle Parmesan into two 3-inch-wide circles on an oiled baking sheet. Bake on middle rack until golden brown and crisp, 6-10 minutes. (TIP: Check often to make sure the cheese doesn’t burn.) Let frico cool until hardened, then transfer to a paper-towel-lined plate.