Yule log recipes, please?

I'm planning to make a chocolate log for Christmas. Does anyone have a tried and tested recipe for me to try, rather than me just picking one at random?! Thanking you muchly.

ETA: @Caroline, she adds, hopefully.

If you get one I'd love to copy

Yes I have a Nigella recipe which I will be making at some point this year. I shall post it this evening hopefully. If I don't remind me

I make the Nigella one too. Its yummy. Will see if I can find it online. ETA here you go

Here's a pic of the one I made using the above recipe

Here's a pic of the one I made using the above recipe

It's a delicious cake isnt it. I think I might make it between Xmas and New Year.

Thank you, both. That sounds delicious, so I'll definitely have a crack at that next week.