Rhubarb-Upside Down Cake
["5 c. cut up rhubarb", "1 small box strawberry or raspberry jello", "1 c. sugar", "3 c. miniature marshmallows", "1 pkg. white cake mix"]
["Cut up rhubarb in 9 x 13-inch pan.", "Sprinkle with strawberry or raspberry jello.", "Spread on sugar and marshmallows.", "Mix cake mix as directed and spread.", "Bake in 350\u00b0 oven for about 1 hour. Cool in pan 5 minutes, then remove to tray or platter."]
["rhubarb", "strawberry", "sugar", "marshmallows", "white cake mix"]