Irish Shortbread (Wheat Free Edition)

Step 1
Preheat oven to 300 degrees F (150 degrees C). Line 2 8-inch cake pans with parchment paper.

Step 2
Place the butter and sugar into a bowl, and mix with a wooden spoon until the mixture is soft, creamy, and thoroughly blended. Stir in the rye and corn flours, and divide the dough into 2 pieces. Press each piece of dough evenly into a prepared cake pan. Using a fork, prick 7 or 8 rows of shallow little holes into the top of each cake. Sprinkle the tops of the cakes with colored sugar, if desired.

Step 3
Bake in the preheated oven until the tops of the cakes are golden brown, and the edges turn a slightly darker brown, 45 minutes to 1 hour.

Step 4
Cut each shortbread into 8 wedges while still warm; cool and store in a tightly sealed cookie tin or container lined with parchment or waxed paper.