Instructions:
Prepare the Potato Cake Mixture:
Combine mashed potatoes, egg, cheddar cheese (if using), green onions, flour, garlic powder, onion powder, salt, and pepper in a bowl.
Mix until well combined. Add more flour or breadcrumbs if mixture is too loose.
Shape the Potato Cakes:
Divide mixture into 8-10 portions.
Shape each portion into a ½ inch thick patty.
Fry the Potato Cakes:
Heat butter or oil in a skillet over medium heat.
Fry potato cakes for 3-4 minutes per side, or until golden brown and crispy.
Drain and Serve:
Transfer cooked cakes to a paper towel-lined plate to drain excess oil.
Serve warm with sour cream or ketchup.
