There are many ways to vary this recipe for different flavors. You can add 1/4 cup of sifted raw cacao or unsweetened cocoa powder into the dry batter mix to create a chocolate flavor. You can also create a chocolate glaze by replacing the arrowroot powder in the glaze recipe with 1/4 cup cacao powder. This will create a deliciously decadent chocolate glaze/frosting that is a little less sweet but so yummy! You can also create a mixture of maple sugar and cinnamon and then roll the donut holes in that to create an apple cider donut effect! A separate filling idea is to create a naturally sweetened lemon curd recipe to fill the donut hole with, or using the maple or chocolate glaze recipe to fill the donut hole for a creamier center! Play around with the options and have fun!