This mousse is so incredibly rich that you can stand a spoon in it and it will not fall. I have been making this recipe for the last 18 years, it's based on a recipe I found in a Marks & Spencer's cookbook I got as a wedding present. [Edited to say that this was posted in 2001, now it's 2006 and it's been 23 years since I've been making this recipe, and it's still going strong!]