Try adding marshmallows to the fondant. Heat it in microwave just a few seconds to soften slightly. Poke mini marshmallows in the fondant about every 1/2 inch or so, then heat again (10 seconds or so & gloves are highly recommended for this step) then knead the fondant until the marshmallows are well incorporated. If this helps it, but not quite where you need it to be, then repeat the process. This has worked several times for me with black MMF.
2/26/13 at 6:36pm