The perfect sweet treat for summer! These sugar cookie bars are soft, lemony and topped with delicious cream cheese frosting.
Preheat oven to 350F. Grease 9" x 9" baking pan.
In the bowl of a standing mixer, beat butter and sugar until light and creamy. Add eggs, lemon and vanilla extract, mixing until smooth.
In a separate bowl, whisk together flour, baking powder and salt. Gradually add to butter mixture and mix until combined. Evenly spread into pan. Bake for about 25 minutes, until edges are lightly browned. Let cool.
In the bowl of a standing mixer fitted with the paddle attachment, beat cream cheese and butter on medium speed until smooth and creamy. Add powdered sugar, vanilla extract and salt. Mix on low until combined. Use a rubber spatula to scrape down the sides and bottom of the bowl. Continue mixing on medium-high for two minutes. Spread on top of cooled cookie bars and add sprinkles.