Dehydrate the orange peels in the sun, or alternatively in a dehydrator for up to 24 hours. You can also use a conventional oven set to its lowest temperature for six hours.
Place the dehydrated orange peels in a blender and combine until they become a fine powder.
Store in the fridge until you’re ready to use. This makes an excellent garnish on vegan desserts or a citrus kick to stir fries.