How to Make It
To make the cookies, reheat oven to 375 °. Line 2 large baking sheets with parchment paper.
Beat the butter, sugars, and orange zest in the bowl of a stand mixer until fluffy, 4 minutes. Beat in egg at medium speed, 2-3 minutes. Mix in pumpkin puree and vanilla until just combined.
Whisk together flour, pecans, pumpkin pie spice, baking powder, baking soda, and salt in a medium-sized mixing bowl. Slowly mix flour mixture into the butter mixture until just combined.
Spoon dough by the tablespoonful, 2 inches apart, onto prepared baking sheets. Bake at 375 ° for 10-14 minutes, rotating pans halfway through cooking, or until set. Cool on baking sheets 5 minutes before transferring to a wire wrack.
To make the glaze, whisk together the confectioners’ sugar, cream, coffee liqueur, and butter until smooth. Spoon glaze over cookies after they have cooled completely.