Basically make a (hot) cheese sauce (Milk, old cheese, a bit of salt, and a pinch of pepper) -> pop it in the freezer for about 2 hours. Then cut it into pieces. Water the inside of the dough and add the cheese then fold the dough -> use a fork to press the edges of the dough together. Water the outside and yeet it through breadcrumbs. Pop it back in the freezer for another 2 hours before airfrying it at 180 to 200C for about 6 minutes, less if you oil fry it.