In a medium bowl, using a fork, mix together dry ingredients.
In a larger bowl, using a mixer, beat together sugar, brown sugar, eggs, vanilla extract, coconut oil, maple syrup and shredded zucchini.
Add dry ingredients slowly until batter is formed. Spoon batter into greased and floured donut pan, filling ¾ of the way to the top of the pan.
Bake at 350˚ for 10-12 minutes or just until toothpick poked into thickest part comes out clean. (Don't overcook or donuts will be dry)
Remove donuts from oven and flip onto a cooling rack.
To make the glaze topping, use a glass measuring cup to melt chocolate chips in the microwave. Use 30-second increments stirring in between until melted all the way through (about 1 minute) Stir in syrup then pour over top each donut. Immediately add sprinkles so they stick. If you want a thicker icing to pipe on, add less maple syrup to the icing.