To dry orange slices for decoration, slice oranges crosswise and place on a cookie sheet. Bake in an oven set at 150 F, and flip the slices once an hour for approximately 4 hours until mostly dry.
- Slice oranges crosswise
Cut oranges into crosswise, quarter-inch thick slices that look similar to a pinwheel. Keep the slices as uniform as possible.
- Place slices on a baking pan or sheet of foil
Lay the slices flat on a baking sheet. You can use a piece of foil if you don't have a baking sheet.
- Place baking sheet in a 150 F oven
Bake the orange slices in an oven set at 150 F for approximately 4 hours. Turn orange slices over with a spatula once an hour until they are almost completely dry.
- Finish drying at room temperature
Once the slices only have a little moisture left, remove them from the oven. Allow them to finish drying at room temperature to retain the orange coloring.