Heat oven to 375ºF. Line two baking sheets with parchment.
Combine all ingredients in a large bowl, stirring until all of the flour is incorporated and a thick, tacky dough forms.
Divide the dough into 16 small balls, about the size of a large marble. Flatten each ball between your palms, then press into a thin round disk about 1/8-inch thick. Arrange on the prepared baking sheets. Prick the discs all over with the tines of a fork.
Bake 10 minutes, or until lightly browned and crisp. Remove form the oven and transfer to a wire rack. Let cool completely.