Cemetery Cake

Name: Cemetery Cake
Prep time: 20 min
Total time: 20 min
Cuisine: American
Ingredients: 1 box cake mix, baked into a 9x13” rectangle and cooled completely; 1 recipe chocolate buttercream or about 2 cans prepared chocolate frosting; ½ recipe white buttercream or 1 can prepared vanilla frosting; 1 round cookie with a hole in the center (such as a Keebler Fudge stripe); 3 wafer cookies, “glued” together with some frosting on the back side (for the tombstone); ½ cup dyed red; ⅓ cup dyed green