I never have any luck using the marshmallow recipe. Especially in the summer! Ive used Michele Foster's recipe in the recipe section and have never had a problem with it. It always rolls out really nice and thin and tastes really good too. But if I dont have time to make it I will by Fondx or Wilton if Im desperate. You could try buying a small thing of the Wilton fondant and mixing it with your own and that might help the consistancy on it.