This recipe came from a cookbook of appetizers. My family loves these tasty, savory cookies. The recipe is worth sharing and the recipe should definitely be doubled. Enjoy!
1/2 cup all-purpose flour
3 tbsp butter, softened
1 egg yolk
2/3 cup grated Parmesan cheese
Pinch of salt
Pinch of mustard powder
1. Rub together the flour and butter in a bowl using your fingertips, then work in the egg yolk, Parmesan cheese, salt and mustard powder. Mix to bring the dough together into a ball. Shape the mixture into a log, wrap in foil or plastic wrap and chill for 10 minutes.
2. Preheat oven to 400 degrees. Cut the Parmesan log into very thin slices, 1/8 to 1/4 inch thick maximum, and arrange on a baking sheet. Flatten with a fork to give a pretty ridged pattern. Bake fro 10 minutes, or until the Parmesan thins are crisp but not changing color.