Drain pineapple, reserving 1/2 cup juice. Dissolve Jello in boiling water. Add marshmallows, ... Blend well. Add Cool Whip and fold into gelatin mixture. ... top and chill well.
Bring crushed pineapple to a ... stove and pour Jello in with pineapple hot; let cool and pour buttermilk in and ... in thawed Cool Whip. Pour in long shallow Pyrex.