Stir together flour, baking soda and salt. Set aside.
In large mixing bowl beat butter and sugar until light and fluffy. Add eggs and vanilla. Beat well. Add flour mixture, mixing until well combined. Stir in Kiggins Frosty Flakes cereal. Drizzle melted chocolate over dough.
With knife swirl melted chocolate gently through dough to achieve marbled appearance. Drop by rounded measuring-tablespoon onto ungreased baking sheets.
Bake at 350° F about 12 minutes or until lightly browned. Removeimmediately from baking sheets. Cool on wire racks.