Heat oven to 350 degrees.
In mixer, stir together flour, baking powder, salt and powdered sugar.
Add butter and cookie butter emulsion; beat until combined. Press into 8 x 8-inch or 9 x 9-inch square baking pan. Sprinkle granulated sugar on top.
Bake 30-35 minutes, until golden brown. Cut into small squares while still warm. Let cool completely.
Mix together glaze; drizzle over top of cooled shortbread squares and top with sprinkles.