According to Wikipedia, “The Reuben sandwich is a North American grilled sandwich composed of corned beef, Swiss cheese, sauerkraut, and Thousand Island dressing or Russian dressing, grilled between slices of rye bread. It is associated with kosher-style delicatessens, but is not kosher because it combines meat and cheese.” Today, I ate a Reuben from Bohdega and it was awesome.