preheat oven to 350F
cream together 1 cup softened butter + 1 cup granulated sugar + 1/3 cup powdered sugar
stir in 1 package (8oz) softened cream cheese + 1 tsp vanilla
whisk in 1 egg
add in 1 3/4 cup all purpose flour + 1/2 tsp baking powder and mix until combined
press into a lined 9×13 dish
bake for 25-30 min or until golden
frosting:
4 tbsp melted butter + 2 cups powdered sugar + 1 tbsp milk of choice
frost + add sprinkles once bars have cooled