2 sm. pkgs. instant vanilla pudding
2 c. buttermilk
2 sm. cans mandarin oranges, drained
1 lg. can pineapple chunks, drained
1 lg. container Cool Whip

Mix the pudding and buttermilk. Add the other ingredients to the mixture. Just before serving, add 1 package of striped shortbread cookies, crushed in hands.