8dropswhite food coloringfor a bright white frosting
1/3cup heavy cream
Instructions
Beat butter and shortening, add sugar, vanilla, coloring, and cream, and mix until smooth and creamy.
Place in a piping bag with a round tip. I used a 2A tip, it allowed just the right amount of frosting to come out without it piling up too high.
Place the cake in the fridge overnight so the cookies soften with the frosting to make it easier to cut
Notes
I made this cake a day ahead. I baked 6 dozen chocolate chip cookies crisp, so they hold up to the frosting. They will soften up when refrigerated. 3/4 cup chocolate chips for the top, and used Nestlé Toll House Cookie Recipe for the cookies.