Have you actually tried a 'normal' dumpling with stew and tested before and after?
Because, as long as you only eat a small dumpling, it may not raise your bg's too much. After all, it's just suet and flour, and it's the flour that has the carbs. It may not upset your levels too much, once in a while.
If the stewing meat is not too lean, you may be okay!
Once I've finished being a guinea pig for the fish and chips, I might sacrifice myself in the interests of dumplings next! But not until at least April! :wink:
Viv