Ingredients

3 heirloom tomatoes, sliced crosswise 1/2-inch thick 

1/4 cup extra-virgin olive oil 

Coarse salt and freshly ground pepper 

Preparation

Preheat oven to 250 degrees.

Fit a rimmed baking sheet with a wire rack. Place tomato slices on rack and drizzle with olive oil; season with salt and pepper. Transfer to oven and bake until dry and wrinkled, about 3 hours.