To reheat mashed potatoes, put them in a microwaveable bowl, microwave them for one minute, stir them, add milk and butter, microwave the potatoes again, and repeat until they are hot. The supplies you need are a microwaveable bowl, a spoon, a kitchen thermometer, a microwave, milk and butter.Continue Reading
Take the potatoes out of the refrigerator, and put them in a microwaveable bowl.
Microwave the potatoes for one minute, take them out of the oven and stir them.
Add a small amount of milk and butter. If the potatoes feel very stiff and dry, add more milk. Fold the milk and butter into the potatoes with a long wooden spoon, and then return the potatoes to the microwave.
Heat the potatoes for one minute, pause the microwave, stir them and microwave them for another minute. Alternate heating and stirring until the potatoes are hot. Insert a kitchen thermometer into the center of the potato bowl, but do not let the tip hit the bottom. If the internal temperature is at least 140 degrees Fahrenheit, remove the potatoes from the microwave, and serve them immediately.