- Peel from 2 oranges (or other citrus fruits)
Preheat the oven to 80C or as low as it goes. Wash and dry the orange peel well. Use a pairing knife to cut the peel into thin sheets, making sure to remove as much of the white pith as possible. Spread the peel out in a single layer on a baking sheet. Bake for 2-2 1/2 hours, or until the peel is dry and brittle. Grind the dried peel in a coffee grinder or spice mill and store in an airtight container (or store whole and grind as needed). The powder will keep for up to 1 month in a cool, dry place.