Doughnut shops traditionally make fresh doughnuts daily, and some shops continue to make freshly made doughnuts throughout the day because doughnuts taste the best when they are still warm and freshly made. Though you can't recapture their fresh-made taste perfectly, doughnuts can still be warmed and eaten a day or two after.
Allow your doughnut to thaw at room temperature if frozen. You can also choose to skip this step.
Place the doughnut in the microwave for 8 seconds if it is frozen. If it is not frozen, try keeping it in the microwave for half the time.
Add more time in the microwave until the doughnut is warm.
Alternatively, you can choose to warm your doughnut in the oven. To do this, preheat oven to 176 degrees C. Place the doughnut on a pan. Cover it with foil and allow it to warm in the oven for 10 to 15 minutes.
Place doughnuts in the freezer for long-term storage. Make sure to place the doughnuts in a airtight container. Doughnuts can be stored in the freezer for a maximum of four weeks.