Cut ham and melting cheese into 6 vertical strips each.

In a bowl, mix the egg and yogurt together.

Add melted butter to the mixture and stir. Then add pancake mix and mix until no dry powder remains.

On a floured surface, knead the dough until smooth. Divide into 6 portions and roll each into a 30cm stick. Flatten slightly with a rolling pin.

Spread mayonnaise on each flattened dough piece. Layer ham, cheese, and ham in order, then roll tightly from one end.

Place a round piece of parchment paper in a frying pan and arrange the rolls on top.