1 (5 5/8 oz.) pkg. vanilla flavored Jello instant pudding mix
1 1/3 c. buttermilk
1 (8 oz.) container Cool Whip
1 (30 oz.) can fruit cocktail, well drained
2 cans mandarin oranges, well drained
1 c. miniature rainbow colored marshmallows (opt.)

Blend buttermilk into pudding mix using medium speed of mixer. When smooth, blend in Cool Whip. If consistency of mixture seems too thick, add a little more buttermilk. Fold in fruit cocktail and mandarin oranges, reserving half a can of oranges for garnish. Swirl a design on top of salad with a tablespoon. Gently arrange balance of mandarin orange slices in swirled design on top of salad. Add colored marshmallows to mixture before garnishing, if desired.