1 lg. can crushed pineapple, undrained
2 c. buttermilk
1 (6 oz.) lime or orange Jello
1 (9 oz.) carton Cool Whip

Bring pineapple to boiling point. Remove from heat and add Jello, stirring until Jello is dissolved. Add buttermilk. Cool until thick, then fold in Cool Whip. Let chill several hours.