01 -
Preheat oven to 350°F. Line a 9×13-inch baking pan with parchment paper and set aside.
02 -
In a large mixing bowl, cream the softened butter with granulated sugar until light and fluffy.
03 -
Add vanilla extract and egg to the creamed mixture. Blend until smooth.
04 -
Sift in all-purpose flour and baking powder, mixing until a cookie dough forms.
05 -
Evenly press the dough into the prepared baking pan.
06 -
Bake for 14 to 16 minutes, or until the edges are lightly golden. Allow to cool completely in the pan.
07 -
In a separate bowl, beat the softened butter, powdered sugar, vanilla extract, and heavy cream until the frosting is light and fluffy.
08 -
Add orange food coloring as desired and mix thoroughly until you reach your preferred shade.
09 -
Spread the orange frosting evenly over the cooled cookie base. Decorate with Halloween sprinkles, if using.
10 -
Once the frosting has set, cut into squares and serve, or store in an airtight container.