1 pkg. lady fingers (from bakery)
1 (8 oz.) tub Cool Whip
1 (3 1/2 oz.) pkg. instant pistachio pudding mix (Royal brand)
1 Heath candy bar

Split lady fingers in half; put half in bottom of 9-inch square dish. Make pudding as directed, fold in the Cool Whip. Spread half of mixture over lady fingers, put other half of lady fingers and spread last half over all. Sprinkle top with grated Heath candy bar. Refrigerate until ready to serve.