Sugar Cookie Bars

1 cup room temperature butter
2 cups sugar
4 eggs
2 teaspoons vanilla
5 cups flour
1 teaspoon salt
1/2 teaspoon baking soda

Frosting:
1 cup room temperature butter
1 teaspoon vanilla
pinch of salt
4 cups powdered sugar
5 tablespoons milk

Preheat oven to 375 ° F.  Spray a half sheet pan (cookie sheet) with nonstick spray.

With an electric mixer, cream the butter and sugar until fluffy. Add eggs, one at a time, mixing after each egg. Add vanilla & mix well. In a separate bowl combine flour, salt and bakings soda with a whisk. Add flour mixture to the mixing bowl a little at a time, and mix until just combined.

Press dough onto a greased cookie sheet. Bake at 375 degrees for 10-15 min, or until a toothpick comes out clean. Let cool before frosting.

Frosting: Mix butter with an electric mixer until smooth. Add vanilla and salt. Add powdered sugar in small amounts until combined, then add milk and mix until smooth.  Add a few drops of food coloring if desired.  Frost cookie bars and cut into large squares.