Add the flour into the wet ingredient mixture and gently mix. Add 1/2 of the sprinkles to the batter and fold in.
Using a spatula, put the batter in a piping bag or a ziploc bag and use a pair of scissors to cut one corner open. Pipe the batter in the donut pan, or gently pipe into a donut shape on a baking tray
Bake at 350 for 8-10 minutes. Let cool completely before adding glaze.
While the donuts bake and cool, whisk together the glaze ingredients and then dip the donuts in the bowl of glaze and add the rest of the sprinkles to the top.
Notes
If making gluten free, I recommend either Bob's Red Mill gluten free all purpose flour or Cup for Cup 1:1 gluten free baking flour.