Spread the puff pastry on the same paper as they serve. Put about 6 slices of sweet ham, spread them with mayonnaise and put the sheets of cheese on top.
Roll all together until forming a tube. After shape of a circle, joining the ends. To do a few cuts to the sides, without breaking completely so, once cooked, it will look like a crown.
Put it on a baking sheet and paint the pasta with the beaten egg. Heat the oven to 180º and in 25 or 30 minutes you will have a good starter.