Chocolate Mousse Tart

This chocolate mousse has no eggs, which is unusual. In fact, I’m not sure it qualifies as real mousse. I used to make a traditional chocolate mousse, separating the eggs, combining the yolks and melted chocolate, whipping the whites until foamy. But when the bakery first opened, I began using new milk and cream from a small farm in upstate New York. The cream was so rich that it threw the mousse recipe out of whack. While adjusting the proportions and retesting, I realized that cream by it