1 lg. box orange Jello
3 sm. cans mandarin oranges
1 lg. Cool Whip
1 bag sm. marshmallows
1 sm. sour cream

Mix jello, 2 cups hot water, 1 cup cold. Chill until almost firm, about 30 minutes. With a mixer, mix until foamy, add oranges; drained. Beat in Cool Whip and sour cream. Then fold in about 2 cups of marshmallows. Chill for at least 45 minutes.