These Frosted Cashew Cookies are one of the best Christmas Cookie recipes you will find! Soft, chewy, cookies filled with cashews and topped with a buttercream frosting. You don’t get much better than that!
Preheat oven to 350 degrees and line baking sheets with parchment paper.
In a medium mixing bowl, mix the flour, baking powder, baking soda, and salt together. Set aside.
Beat sugar and butter in the bowl of an electric mixer until creamy. Add the egg and vanilla and mix until smooth. Alternate between mixing in the dry ingredients and the sour cream. When combined, fold in the cashews with a spatula.
Use a 1 1/2 tablespoon cookie scoop to spoon onto the baking sheets 2 inches apart. Bake for 10 minutes or until light brown. Cool for 2-3 minutes on the pan and then move to a wire rack to cool completely.
In a small sauce pan, melt the butter over medium heat until golden brown. Remove from heat and pour into a mixing bowl. Let it cool for about 5 minutes and then whisk in the powdered sugar, vanilla, and milk, beating until smooth. Frost over the tops of cooled cookies.