Step 1

Preheat the oven to Either grease a 13x9 pan very well or line it with parchment paper or foil

Step 2

In the bowl of a mixer blend butter, cream cheese and sugar, until well blended. Add in the egg and vanilla and mix until completely combined.

Step 3

In a medium bowl mix the baking powder, baking soda, salt and flour. Slowly add in baking powder, baking soda, salt and flour until a thick dough forms.

Step 4

Press the dough evenly into the prepared pan and bake for 20-25 minutes.

Step 5

Cool completely before frosting. About 20 minutes after baking your can lift the dough out of the baking pan, using the foil. Put it on a wire rack to finish cooling.

Step 6

For the frosting, In the bowl of a mixer add the room temperature butter and cream cheese and mix until blended.

Step 7

Add in the vanilla and slowly mix in the powdered sugar. Mix until creamy and smooth.

Step 8

Spread the icing evenly and thickly across the cooled cookies.

Step 9

Sprinkle the icing with lots of seasonal sprinkles.

Step 10

Cut into squares and enjoy.