I combine both recipes – I used black forest ham and swiss cheese, gruyere can be substituted. Coat in flour/salt/pepper mix, egg, then breadcrumbs with garlic/salt/pepper/thyme. These are very difficult to roll up – toothpicks required. Bake for ~35 minutes. (one recipe says 20, one 40-45…)
Delicious! Very light and quick to make. Would have looked nicer if I had an actual pastry bag to use.
Also the batter is too thick for a normal pastry bag.