Guaranteed to please kids of all ages, Christmas Lights Cookies are an easy and fun Christmas cookie to make for holiday gatherings. Perfect for cookie exchanges!
Cream the butter, shortening, sugar, 2 tsp vanilla extract, and 2 eggs in a large bowl. Mix in the flour, baking soda, baking powder, sour cream, and salt. The dough will feel soft and sticky, so chill the dough directly in the bowl until firm.
Roll the dough onto a well-floured surface, then cut into circles with a cookie cutter. Place the cutouts on a parchment lined pan and bake at 350° for 8–9 minutes.
While the cookies are cooling, prepare the frosting by mixing 1 stick of unsalted butter with 3 cups of powdered sugar, 1 tsp of vanilla extract, and 3 tbsp of milk. Divide the frosting into 2 small bowls. Stir black food coloring into 1 bowl and leave the second bowl uncolored.
Spoon the black frosting into a bag fitted with a #1 tip.
Use a round, flat knife to spread white frosting onto each cookie.
Pipe the black frosting along the outside, creating loops and curves to emulate tangled holiday lights. Last, invite kids to press mini M&Ms into the black frosting to create a complete strand of lights.
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