thinly cut potatoes with a mandolin or by hand. Should be around 1/4 inch thick. Chop garlic very fine and grate Parmesan set aside
butter a round pan with removable bottom and begin to layer the potato slices in concentric circles. Use 1/2 of the garlic and spread over potatoes, spread 1/2 the Parmesan cheese over garlic and dot 3 tablespoon of butter over the potatoes. Salt and pepper.
Continues with a new layer same as first cover with foil and bake 30- min at 400 degrees then take foul off and bake another 10 min till browned. Let sit 5 min and remove sides of pan.?