Updated 31 July 2026 · Written by MKB Team
To reheat mashed potatoes, stir in a splash of milk and a little butter to restore creaminess, then warm them gently on the stovetop over low heat, in the microwave covered, or in a 350 F oven. The added liquid replaces moisture lost in the fridge and stops the potatoes turning dry and gluey.
Add a splash of milk and some butter, then reheat gently on the stove, covered in the microwave, or in a 350 F oven.
The Best Methods
- Stovetop: warm over low heat with milk and butter, stirring until creamy.
- Microwave: add milk, cover, and heat in intervals, stirring between.
- Oven: stir in milk and butter, cover, and bake at 350 F until hot.
Why Add Liquid
Chilled mashed potatoes firm up and dry out as the starches set, so stirring in milk, cream or butter revives their creamy texture. Reheat gently and avoid over-stirring, which can make them gummy. Leftover potatoes keep a few days; see how to store potatoes for the raw ones. A microwave makes quick work of single portions.
Frequently Asked Questions
How do you reheat mashed potatoes without drying them out?
Stir in a splash of milk and a little butter before reheating gently. The added liquid replaces moisture lost in the fridge and keeps them creamy.
Can you reheat mashed potatoes in the microwave?
Yes. Add a little milk, cover, and heat in intervals, stirring between each, until hot and creamy throughout.
