What is "dumpling soit"? I am watching a Gordon Ramsey youtube video, he is cooking dumplings. At approximately the 6:04 mark of the video Gordon mentions "Next the dumpling essentail, soit". It looks to be a off white substance about the size of rice kernels, almost exactly like shredded cheese. 

What is this "dumpling soit"? I assume some form of animal fat?
Yes, it is animal fat. The word is spelled "suet" and it comes from beef. 

I haven't been able to find a recording of the word with British accent, but this is what fits the context too. It also seems to exist in this flaky form that is shown in the video.