Rhubarb Cake

4 cups rhubarb, cut up
1 cup sugar
2 3oz pkgs strawberry jello
1 box white cake mix
Miniature marshmallows

Cook rhubarb with sugar until soft. Add the pkgs of jello, mix and set aside to cool. Mix up the cake mix by directions on box. Line cake pan with miniature marshmallows. Pour cake mixture over the marshmallows. Drizzle rhubarb mixture over the cake mix. Bake at 350 for 30-35 minutes.