Chocolate Mousse Cake

This is a flourless cake (suitable for gluten-free diets). It is pareve and easy to prepare ahead, so it is good for Shabbat and Festival meals. I originally learned to make chocolate mousse from my mother, a maths graduate and meticulous cook, who came from Lisbon. This new version comes from my daughter-in-law in Israel, Karen Miller Jackson, who makes huge and fantastic meals for Shabbat.