FIRST LAYER:

12 graham crackers, crushed
1/4 c. sugar
1/2 c. melted butter

Press in pan. Bake 5 minutes at 350 degrees; hold some for top of dessert.

SECOND LAYER:

4 1/2 c. rhubarb
1 1/2 c. sugar
3 tbsp. cornstarch

Boil until pudding texture; cool; put on graham crust.

THIRD LAYER:

8 oz. Cool Whip
1 c. miniature marshmallows

FOURTH LAYER:

1 pkg. instant vanilla pudding

Prepared according to package. Pour over Cool Whip layer, top with graham crust sprinkles.