Start by mixing your leftover mashed potatoes, crumbled bacon, shredded cheese, chives, and garlic powder in a large bowl. I like to taste the mixture here to ensure the flavors are balanced before shaping the balls.
Take a small handful of the mixture and roll it into a smooth ball. I find that using a cookie scoop helps keep them uniform. Make sure the balls are compact so they hold together while frying.
Dip each ball into the beaten eggs, letting excess drip off, then roll it in panko breadcrumbs until fully coated. I make sure every ball has a generous layer of panko for maximum crunch.
Heat oil in a pan over medium heat and fry the balls until golden brown on all sides, about 3–4 minutes each. I like to fry them in batches to avoid overcrowding, which helps them stay crispy.
Remove the balls from oil and place them on a paper towel-lined plate. I always let them rest for a minute so they’re not too greasy and the inside remains soft.