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Leftover Mashed Potato Cakes Recipe

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4 from 57 reviews

This Leftover Mashed Potato Cakes recipe transforms cold mashed potatoes into crispy, golden patties perfect for a quick snack or side dish. Combining grated cheddar cheese and eggs with mashed potatoes, these cakes are pan-fried to achieve a crunchy exterior while maintaining a soft, cheesy interior. Topped with sour cream and green onions, they’re a delicious way to repurpose leftovers into a comforting treat.

  • Total Time: 25 minutes
  • Yield: 8 servings

Ingredients

Mashed Potato Cake Ingredients

  • 2 ½ cups cold mashed potatoes
  • 1 ½ cups grated cheddar cheese
  • 2 large eggs
  • ½ cup flour (plus more for breading)
  • Neutral flavored oil, as needed (such as vegetable or canola oil)
  • Sour cream, for topping
  • Sliced green onions, for topping

Instructions

  1. Mix dough: In a large bowl, combine the cold mashed potatoes, grated cheddar cheese, and eggs. Stir together well. Gradually add ½ cup of flour, mixing until the mixture forms a soft and slightly sticky dough. Add more flour if necessary to achieve this consistency.
  2. Form cakes: Divide the dough into eight equal portions and shape each into a ball. Flatten each ball into a patty shape. Place some flour in a small bowl and lightly coat each patty by rolling it in the flour to prevent sticking during frying.
  3. Fry: Heat a splash of neutral flavored oil in a medium-sized cast iron or non-stick frying pan over medium heat. Once the oil is hot, add half of the potato cakes to the pan. Fry the cakes for 3 to 4 minutes until the bottoms are golden brown and crispy. Carefully flip the cakes with a spatula and fry the other side until it is golden as well. Remove the cakes and place them on a paper towel-lined plate to drain excess oil. Repeat this process with the remaining cakes.
  4. Serve: Serve the mashed potato cakes warm topped with a dollop of sour cream and sliced green onions for a fresh, tangy finish.

Notes

  • Use a neutral flavored oil with a high smoke point such as vegetable, canola, or sunflower oil for frying to achieve the perfect crispiness.
  • Make sure the mashed potatoes are cold to help the cakes hold together better during frying.
  • Adjust flour quantity if the mixture feels too wet or sticky; too much flour can make the cakes dense.
  • For extra flavor, you can add herbs like chives or parsley to the dough.
  • These cakes are best served immediately to enjoy their crispy texture.
  • Author: ELLA
  • Prep Time: 10 minutes
  • Cook Time: 15 minutes
  • Category: Side Dish
  • Method: Frying
  • Cuisine: American