Keystone Our cornerstone cheese made in the style of a northern Italian cheese, but with our own local twist. We rub it with Sandy Oaks Texas olive oil as it ages in the cave. Hearty and fulfilling, Keystone has flavors that lend towards pasta but can be used in many ways. This is the perfect cheese to go in your morning eggs or a nice quiche. The flavors are strong and deep with a nice salty kick.