Food & Cooking Recipes Seasonal Recipes Winter Recipes Oven-Dried Orange Slices 3.1 (294) Close Yield: Makes about 1 1/2 dozen For a fun two-ingredient garnish for a cocktail or a mocktail, make these easy dried orange slices. The hardest part of this recipe is slicing the orange thinly, beside that the oven does all the work. Directions Preheat oven to 200 degrees. Line a baking sheet with a nonstick baking mat. Top with orange slices in a single layer, and generously dust with sugar. Bake until the peels are dry and the flesh is translucent, about 2 1/2 hours.