Mix all dry ingredients together. Add diced butter and crumble by hand.
Pour in the milk and bring the dough together.
Fold the dough, placing sliced cheese between layers as you fold.
Rest in the refrigerator for at least 30 minutes (you can also make the dough the day before).
Shape the dough and place cheese on top.
Bake in a preheated oven at 160°–170°C for 20 minutes.