In a large mixing bowl or stand mixer, add sugar and softened butter. Mix until combined.
Next add egg, baking powder, orange juice, vanilla, and flour. Mix until combined.
Wrap cookie dough in plastic food wrap and chill until firm 1-2 hours.
On a lightly floured surface, roll out dough to ¼ thickness.
Use a square shape cutter (I used a top from a food container) cut out the square. Next, using an icing decorating tip, cut a small hole in the corner of the cookie for the straw. Place on a parchment-lined baking sheet at least 1-2 inches apart.
Heat oven to 400 degrees, and bake 10-12 minutes until edges are lightly browned.
Cool the cookies completely.