I’m French. I always do my own mayonnaise. You take one egg yolk and one small table sppon of mustard (French one, the US one tastes really differently). Mix this with a whisk. Then gradually add 250 ml of oil (sun flower for example) and whisk it at the same time. Do it really slowely. That’s all you have to do.

Thanks for the advice ! I’ll check that idea.

Because it fails also

Nice. I was afraid the coffee taste would be too strong but it was perfect. And not too sweet so perfect after the heavy dinner!

Kind of. I had one but ended up doing it my own way!

That is easy. Just use somethibg like this:

Sorry I didn’t write down what I changed. But that is more or less the one you can find here https://cookiegourmande.weebly.com/recettes-sucreacutees/buche-fuji-ramisu-de-christophe-felder (sorry that is in French :)