Royal Windsor Red Cheese This page first published: Apr 17, 2004 · Updated: Jun 24, 2018 · by CooksInfo. Copyright © 2021 · This post may contain affiliate links · This blog generates income via ads · Royal Windsor Red Cheese is two layers of Windsor Red Cheese with a third layer of Stilton sandwiched in between them. The cheese is made from cow’s milk curdled with a vegetable rennet.