I had a lovely smooth red fondant that I added gumpaste to so that I could make a nice strudy placque - but when I added the gumpaste, my lovely red fondant got all grainy and lumpy!!! Is there a way I can salvage this mess? Any help would be great!

i would microwave for about 10 seconds then knead the heck out of it. You may need to add a little shortening to it..

Thanks!! I'll give it a try - fingers crossed!!