Turn those leftover mashed potatoes into crispy, pan-fried cakes! A super simple recipe for crispy on the outside, soft of the inside mashed potato cakes. These are hands-down the best way to give those leftovers a second life!

mashed potato cakes on a plate with chive-onion dip on the side and chives on top.

What You’ll Need to Make Mashed Potato Cakes

Cold Mashed Potatoes – No need to reheat those leftover mashed potatoes! Simply add them to a bowl, cold, with the rest of the ingredients. Any kind of mashed potatoes works here, so use whatever you have in your fridge.

Flour – All purpose flour helps these mashed potato cakes hold their shape. I used gluten-free all purpose flour to make my cakes gluten-free, but either works!

Eggs – Two large eggs work to hold this recipe together. They’re super important, so don’t leave ’em out!

Sour Cream – Perfectly tangy and creamy, sour cream is the base of our chive-onion dip! Super cheap and easy to find, I almost always have a tub of sour cream on-hand. However, if you’d like, you can swap out the sour cream for plain unsweetened greek yogurt – just as tangy and delicious!

mashed potato cakes being dipped into chive-onion dip.

Tips and Tricks

  • Add a cup of your favorite shredded cheese for cheesy mashed potato cakes! Cheese is always a fun addition, and tastes delicious.
  • Cook these in the air fryer instead! To do this, lightly grease an air fryer tray or basket, then cook at 400° Fahrenheit for 15-20 minutes, pausing to flip the cakes halfway through.
  • Sprinkle in any additional seasonings you’d like! Doctor up your leftover mashed potatoes with your favorite herbs and/or spices. A pinch of garlic powder, onion powder, or even fresh chopped chives would all make great additions.
a stack of mashed potato cakes with chive onion dip on top.

Adjust This Recipe to Your Dietary Needs

Make it Gluten-Free: Replace the flour with gluten-free all purpose flour, I tested this recipe using Bob’s Red Mill Baking Flour and it turned out great!

Make it Dairy-Free: The mashed potato cakes are already dairy-free, but for a dairy-free dip, sub the sour cream for your favorite non-dairy sour cream. I love Kite Hill’s Sour Cream Alternative, or Forager’s Dairy-Free Sour Cream.

Leftover Mashed Potato Cakes with Chive-Onion Dip

0 from 0 votes
Recipe by Samantha Course: SidesDifficulty: Easy
Servings

6

servings
Prep time

5

minutes
Cooking time

10

minutes
Total time

15

minutes

Turn those leftover mashed potatoes into crispy, pan-fried cakes! A super simple recipe for crispy on the outside, soft of the inside mashed potato cakes. These are hands-down the best way to give those leftovers a second life!

Ingredients

  • 2 cups cold mashed potatoes

  • 1 cup all purpose flour

  • 2 eggs

  • salt and black pepper, to taste

  • 3 tablespoons avocado oil or olive oil

  • For the chive-onion dip:
  • 1/2 cup sour cream

  • 1 tablespoon fresh chives, chopped

  • 1 teaspoon lemon juice

  • 1/2 teaspoon onion powder

  • small pinch of salt

Directions

  • In a large bowl, mix together the mashed potatoes, flour, eggs, salt, and black pepper.
  • Heat oil in a large skillet over medium heat. Once hot, drop in ¼ cup of potato batter and slightly flatten to create a pancake. Cook 4-5 minutes per side, or until golden brown, then repeat with remaining batter.
  • Make the onion-chive dip by adding all ingredients to a bowl and whisking to combine. Serve mashed potato cakes warm with dipping sauce.

Recipe Video

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