Apple Cinnamon Sugar Cookie Bars

Preheat oven to 350 F. Grease a 13×8 rimmed baking sheet (like a jelly roll pan) and set aside.

In the bowl of a stand mixer using whisk attachment, combine butter and sugar and mix on medium until creamy. Mix in eggs one at a time, making sure to mix well after each addition. Mix in vanilla. Scrape the sides of the bowl as needed. In a small bowl, combine flour, salt and baking soda. Blend the flour mixture into the creamed mixture on low speed until completely incorporated. Stir in cinnamon and apples.

Spread bars onto prepared sheet pan. Bake for 15-20 minutes or until a toothpick inserted in the center comes out clean. Remove pan from oven and set it on a rack. Let bars cool completely before frosting.

For the frosting, cook butter in a small saucepan over medium heat stirring constantly for about 8-10 minutes or until butter starts to turn a golden brown color. Remove from heat and pour into a small bowl. Cover and refrigerate butter for an hour or until it begins to solidify.

In the bowl of a stand mixer using whisk attachment, beat butter until smooth. Carefully add powdered sugar alternately with the milk beginning and ending with the powdered sugar. When frosting is a spreadable consistency, stir in vanilla. Spread frosting over cooled sugar cookie bars.