For the Sugar Cookie Bars
– Butter
– Granulated Sugar
– large Eggs
– Sour Cream
– Vanilla Extract
– All-Purpose Flour
– Salt
– Baking Soda
– Red and Green Confetti Sprinkles
For the Sugar Cookie Bars3. In the bowl of a stand mixer, combine the butter and the granulated sugar and beat, using the paddle attachment, on high for 3 - 5 minutes or until the butter and sugar is fluffy and creamed. You may need to stop the mixer periodically and scrape down the sides of the bowl using a spatula.
For the Sugar Cookie Bars5. Then, stir in the sour cream and vanilla extract, scraping down the sides as necessary to ensure that the mixture is fully incorporated.
For the Sugar Cookie Bars7. Add the flour mixture 1 cup at a time to the stand mixer bowl, stirring on low speed with the paddle attachment, until all of the flour has been incorporated into the dough.
For the Sugar Cookie Bars8. Press the dough into the prepared baking sheet, ensuring that it is evenly level across the top and that it fully reaches the corners of the pan.
For the Sugar Cookie Bars9. Bake at 350 degrees F for 20 - 30 minutes, until the bars are lightly golden on the top and done through the center. Remove from the oven and cool to room temperature.
For the Buttercream Frosting4. Scrape down the sides of the bowl with a spatula. If desired, add food coloring, and beat at high speed until frosting is smooth and fluffy.
Decorating the Christmas Sugar Cookie Bars2. Remove the cookies out of the baking pan by lifting the edges of the parchment paper; transfer to a large cutting board.