Step #1 To melt the marshmallows, marshmallows, mix & heat the Jell-O, water & pineapple with juice, stirring constantly until marshmallows are melted.
Step #2 Cool.
Step #3 Fold in to the cooled mixture: cool whip, cottage cheese & optional nuts.
Step #4 Stir as it chills down.
Step #5 Put in any favorite dish to finish setting.