Preheat the oven: Start by preheating your oven to 375°F (190°C). Line a baking sheet with parchment paper for easy cleanup.

Prepare the mashed potatoes: If you don’t already have mashed potatoes prepared, make them first. You can use leftover mashed potatoes from a previous meal, or cook up a fresh batch by boiling peeled and chopped potatoes until tender. Mash them with butter, milk, salt, and pepper to taste. Let them cool slightly before using them in the next steps.

Mix the ingredients: In a large mixing bowl, combine the mashed potatoes, cheddar cheese, Parmesan cheese, beaten egg, garlic powder, onion powder, and a pinch of salt and pepper. Mix everything together until well incorporated. If the mixture feels too sticky, add a little more flour to help bind it.

Shape the puffs: Using your hands, scoop about 2 tablespoons of the mashed potato mixture and roll it into a ball or shape it into a small oval. Repeat the process until all the mixture is used up.

Coat the puffs: In a shallow bowl, pour the breadcrumbs. Gently roll each shaped puff in the breadcrumbs to coat the outside evenly.

Bake the puffs: Arrange the puffs on the prepared baking sheet and brush them lightly with melted butter. Bake in the preheated oven for 20–25 minutes, or until they are golden brown and crispy on the outside. You can also sprinkle a little extra cheese on top during the last 5 minutes of baking if you like extra cheesy puffs.

Serve: Once they are done, remove the puffs from the oven and allow them to cool slightly before serving. Garnish with fresh parsley for a touch of color and flavor.