http://www.epicurious.com/recipes/food/views/Flourless-Chocolate-Cake-14478
Here is a picture of Bjorn enjoying it on his 3yr birthday...
Everyone loved the cake including the kids. We served it with whipped cream ;-)
I will note...since I'm sensitive to egg yolks I made the cake with only egg whites (I doubled the number of eggs since I was only using the egg whites). I'm sure this changed the consistency some, but I'm sure it is super awesome with the egg yolks.
Oh, and my other change was I used coconut sugar instead of regular sugar. :-)