- Put them in a slow cooker, on low heat. They’ll stay warm for an hour or more without overcooking. You can use the same trick for other side dishes, like macaroni and cheese.
- Reheat your mashed potatoes in a bowl over a simmering pot of water. What’s the difference between a simmer and boiling?
- If your potatoes start to dry out, you can keep them creamy with a little warm milk, broth, or water – just add a little bit at a time.