INGREDIENTS
3 oz
shredded Gruyère cheese
2 oz
shredded Parmigiano-reggiano
4 oz
cubed pancetta, cooked
2 cups
heavy cream
4
garlic cloves, roughly chopped
1 tbsp
fresh thyme leaves, roughly chopped
Kosher salt and freshly ground black pepper
3 lb
russet potatoes, peeled and sliced 1/8th-inch thick on a mandoline slicer