Easy Microwave Mashed Potatoes

Microwave mashed potatoes

The Spruce 

  • Total: 16 mins
  • Prep: 6 mins
  • Cook: 10 mins
  • Yield: 4 to 6 Servings

These mashed potatoes are fast and simple to prepare and cook. The potatoes are quickly cooked in the microwave then mashed with milk, butter, and seasonings. 

Use peeled baking potatoes, russets, or Yukon gold, or use scrubbed unpeeled red potatoes. This is a great way to have homemade mashed potatoes when you're short on time or have limited cooking options. 

Another fast option for potatoes is this recipe for mashed potatoes using the Instant Pot or electric pressure cooker.


  • 2 1/2 pounds potatoes (peeled and cut into small chunks)
  • 3/4 to 1 cup milk (or light cream)
  • 4 to 6 tablespoons butter (or to taste)
  • Salt (to taste)
  • Freshly ground black pepper (to taste)

Steps to Make It

  1. Gather the ingredients.

    Mashed potato ingredients
    The Spruce 
  2. Rinse the peeled potato chunks; put them in a large, microwave-safe bowl such as a large pyrex measure. A casserole dish or large bowl could be used as well. 

    Cut potatoes in a bowl
    The Spruce 
  3. Cover the dish or bowl with plastic wrap and cut a small vent in the top for steam to escape.

    Bowl of potatoes covered with plastic
    The Spruce
  4. Microwave on HIGH for 8 to 11 minutes, or until the potatoes are tender. 

    Bowl of potatoes in a microwave
    The Spruce
  5. With pot holders or oven mitts, carefully remove the bowl from the microwave. If necessary, transfer to a larger bowl for mashing.

    Potatoes in a bowl with a fork
    The Spruce
  6. Warm 3/4 cup of milk with 4 tablespoons of butter in the microwave until the butter is melted or nearly melted. 

    Warmed butter and milk mixture
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  7. If desired, put the potatoes through a ricer before mashing. 

    Potatoes being put through a ricer
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  8. Add the milk mixture to the hot potatoes and mash with a hand masher or portable mixer. If using an electric mixer, don't over-mix. Add more milk and butter as needed.

    Potatoes being mashed
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  9. Taste and add salt and pepper. Blend well.

    Mashed potatoes in bowl
    The Spruce
  10. Serve alongside your favorite entrée and enjoy!