rhubarb upside down pudding

Has anyone tried rhubarb upside down pudding?
The same as pineapple upside down pud but with rhubarb?

I've just found some recipes and they put butter and sugar in the bottom with the rhubarb. I would prefer treacle, I think.

Thanks, Mrs Ball.
I really meant golden syrup when I put treacle. We have always called golden syrup 'treacle'. I agree that black treacle would be too strong and look too dark.

I did try it today, and decided to follow a recipe I found which said to put sugar and butter in the bottom of a tin (I used marg and a pyrex dish) then I put the raw rhubarb cut into chunks and peeled, and a sponge mixture on top. OH declared that it was very nice, but I have eaten too much dinner so I have not tried it yet.
Rhubarb contains a lot of water, so using dry sugar is probably the best. It tended to bubble up around the edges of the sponge, but has cooked nicely.