Natalie, The best thing you can do is experiment with stacking two completed cookies earlier in the day and seeing what happens before you arrange the whole tray. I have had big trouble with buttery bottoms leaving shiny spots on the icing of the cookies below and ruining them. Even if I allowed the cookies to sit on paper towels or deli wrap, I could see the butter marks. My final solution was to keep cutting back on the amount of butter until the problem disappeared! Now I can make the cookie trays with cookies layered flat to form a big turkey, flower or wreath. Try cutting the butter in the recipe back a half stick and see what happens. Nobody has complained about the cookie flavor being lacking. Good Luck!