Cream together the butter and granulated sugar until well combined. Stir in the all-purpose flour, rice flour, orange zest, vanilla, coffee, cinnamon, and salt until it’s well combined.
If you don’t have rice flour, you can instead just use 2 cups all-purpose flour for the entire batch. The shortbread will still be very delicious!
Mexican coffee shortbread | www.homesicktexan.com