These sugar cookie bars are easy to make and just as soft and fluffy as a classic sugar cookie. Frosted with a simple buttercream frosting and perfect for any occasion.
Dry ingredients. Combine 2 1/2 cups flour, 1/2 teaspoon salt and 1 teaspoon baking powder in a medium-sized bowl. Set aside.
Cream butter and sugar. With a mixer, combine 1/2 cup butter, 3/4 cup granulated sugar and 1/4 cup powdered sugar until fluffy (about 3 minutes). Pour in 1 teaspoon vanilla, 1 eggs, 1 egg white and 1/4 cup sour cream and mix until combined. Then pour dry ingredients into this bowl and mix until combined.
Bake. Place mixture in a buttered 9x13" glass pan. Press down on dough with hands (or a piece of parchment paper) to smooth out the surface to avoid lumpiness. Bake for 20 minutes or until lightly browned. Do not over cook.
Frosting:
Combine 1/2 cup butter, 3 cups powdered sugar, 3 Tablespoons half and half, 1/2 teaspoon vanilla extract and food coloring in a large bowl and beat with a mixer for 2 minutes, or until fluffy.
Once the bars have cooled completely, pour frosting over top and spread evenly with a spatula.
Optional: Top with sprinkles for a decorative touch!