I made this as one of our Chrismas day lunch desserts and was thoroughly enjoyed by those that ate it. I got 8 1/2 small bowls. The only problem I had was with the butter even though I was only adding one small cube at a time and in the end I had a pool of butter fat so transfered to a mixing bowl and using the whipping beaters on the mixmaster I whipped it till it fully merged, I'm not sure if this was because I used 100 grams of 85% cocoa dark chocolate and 70 grams of milk chocolate (both being Lindt chocolate) but all came together in the end. Thank you Hanka for a delightful dessert for our Christmas lunch.
Wonderful lushious and choclatey! Your note was very helpful. There are a lot of chocolate mousse recipes and although I tried to use the recipe sifter to sift out the ones with cream, they still sneaked in under another name. This is just what I was looking for.