Melt butter in saucepan on medium-high heat. Remove from heat. Stir in all remaining ingredients except base cake until well blended. Pipe into quarter size pieces onto parchment paper-lined sheet pans sprayed with cooking spray. Sprinkle each with 1/8 tsp. base cake.
Bake in preheated 350ºF oven 9 min. or until golden brown. Remove from oven. Let sit no more than 1 minute then carefully lift from parchment and shape as desired. Cool completely.