and this one is full of crystals because it’s aged for more than a year and a half in Holland. Costco sells whole wheels of this Gouda cheese, but you can also find wedges of it in the cheese aisle.

According to Howlett, however ... of cheese you'll need, Cheddar -- sharp, extra sharp, or white -- should be at least half. The other cheeses should be melting cheeses, like gouda, fontina ...