How to Reheat Mashed Potatoes in the Oven If you’ve got some time on your hands, use the oven! Take your mashed potatoes out of the fridge and set them on the counter for about 20 minutes to ...

While a double boiler is the best way to reheat mashed potatoes, it's not the only option. If you opt for the microwave, cover them with plastic wrap or a damp paper towel so they don't dry out in ...

Traditional mashed potatoes pose a special problem. You can try making them ahead of time, then reheating them at the last minute, but then they tend to taste stale.