These easy baked funfetti donuts will stay clean for 3-4 days at home temperature if saved within an airtight container. Nevertheless the glaze will start to get soggy. It's best to store donuts ahead of glaze is on them for ideal freshness. FREEZINGStep 4: Pipe the donut batter. Scoop the batter right into a piping bag and pipe the donut batter i