Cookie Cake with Sprinkles

INGREDIENTS For the cookie cake 10 tablespoons butter softened 2/3 cup light brown sugar 1/3 cup granulated sugar 1 egg + 1 egg yolk 3/4 teaspoon vanilla extract 1 2/3 cups all purpose flour 3/4 teaspoon baking soda 1/2 teaspoon salt 1 teaspoon corn starch 1 1/2 cups semisweet chocolate chips divided use 1/2 cup sprinkles cooking spray For the frosting 2 cups powdered sugar 1/4 cup cocoa powder sifted 8 tablespoons butter softened 2 tablespoons milk 1/2 teaspoon vanilla extract INSTRUCTIONS Preheat oven to 350° F. Coat a 9 … Read more