Magic Marshmallow Crescent Puffs (from IF YOU WERE MINE)

Claire laid out one raw crescent roll. “Just flat?” “Yes.” I placed the sugar-and-cinnamon-coated marshmallow at the wide end of it. “Now you have to wrap it up with the dough and seal the edges.” My fingers were also coated with butter, sugar, and cinnamon, so I watched as Claire folded the pointed end of…