Preheat your oven to 400°F (200°C) and grease a mini muffin pan.
In a large bowl, mix the chilled mashed potatoes with the egg, cheddar cheese, chives, flour, garlic powder, salt, and pepper until well combined.
Roll the mixture into 1-inch balls.
Coat each ball in grated Parmesan cheese.
Place the coated balls in the greased mini muffin pan and press gently to flatten slightly.
Bake in the preheated oven for 15-20 minutes, or until the bites are golden brown.
Let them cool slightly before serving warm.
Variations & Tips
For a bit of spice, add a pinch of cayenne pepper or some chopped jalapeños to the potato mixture. You can also swap the cheddar for other cheeses like mozzarella or pepper jack for a different flavor profile. If you have picky eaters, try mixing in some finely chopped cooked bacon or ham for extra savory goodness. For a gluten-free version, substitute the all-purpose flour with almond flour or a gluten-free flour blend.
