Step 1: Prepare the Mashed Potato Mixture

1. In a large bowl, combine the cold mashed potatoes, shredded cheddar cheese, chopped green onions, garlic powder, onion powder, salt, and pepper.
2. Add the egg to help bind the mixture, then stir everything together until it’s well combined. You’re looking for a consistency that holds together easily when you form it into balls.

   Pro Tip: If your mashed potatoes are a little dry, add a splash of milk to help loosen them up, but be careful not to make the mixture too soft.

Step 2: Shape the Potato Bites

1. Using your hands, take about a tablespoon of the potato mixture and roll it into a ball. Continue until all the mixture is used up; you should have around 20-25 bites.
2. Place the bites on a plate or tray lined with parchment paper.

   Note: If your potato balls feel too sticky, refrigerate them for 10-15 minutes to firm them up before moving on to the next step.

Step 3: Set Up the Breading Station

1. Set up three shallow bowls: one with the flour, one with the beaten eggs, and one with the breadcrumbs.
2. Working with one potato bite at a time, roll it in the flour to coat lightly. Shake off any excess flour, then dip it into the beaten eggs, and finally coat it in the breadcrumbs. Repeat for each bite.

   Variation: For a spicy kick, mix a little paprika or cayenne pepper into the breadcrumbs!

Step 4: Heat the Oil

1. In a deep skillet or saucepan, pour about 1½ inches of oil and heat it over medium-high until it reaches 350°F (175°C).
2. Test the oil: Drop a small breadcrumb in—if it sizzles and floats, the oil is ready.

   Safety Tip: Be cautious not to overcrowd the pan when frying, as it lowers the oil temperature and can make the bites greasy.

Step 5: Fry the Potato Bites

1. Gently place a few potato bites in the hot oil, being careful not to overcrowd the pan.
2. Fry for 2-3 minutes, turning occasionally, until they’re golden brown and crispy on all sides.
3. Use a slotted spoon to remove the bites and drain them on a plate lined with paper towels.

   Pro Tip: If you want a super-crispy texture, double fry the bites by frying them a second time for 1-2 minutes after they’ve cooled slightly.