Rhubarb Delight
["1 pkg. graham crackers", "1/4 c. sugar", "1/4 c. melted butter", "1 1/4 c. sugar", "1/3 c. cream", "3 egg yolks, beaten", "2 Tbsp. flour", "2 1/2 c. rhubarb, chopped", "3 egg whites", "1/4 c. sugar"]
["Crust:", "Crush crackers.", "Combine with 1/4 cup sugar and melted butter.", "Double for 9 x 13-inch pan."]
["graham crackers", "sugar", "butter", "sugar", "cream", "egg yolks", "flour", "rhubarb", "egg whites", "sugar"]