Preheat the oven to 400°F (200°C).

In a large bowl, mash the potatoes using a potato masher or grate them using the small holes of a grater.

Add green onion, garlic powder, chili flakes, salt, and pepper to the potatoes. Stir to combine.

In another bowl, combine panko bread crumbs with smoked paprika and oil until the oil is absorbed.

Dust your hands with flour. Take about a spoonful of the potato mixture, flatten it, and add a cheese cube in the center. Wrap and form it into a ball.

Roll the ball in flour, dip it in the beaten egg, and then roll it in the panko mixture, pressing if necessary to stick well.

Place the ball on a parchment paper-lined baking sheet.

Bake for 15-18 minutes until golden and crisp. Be careful not to overbake, or the cheese will start to seep out.

Cool for a few minutes before serving.