Sometimes the most important ingredient is the one you leave out. This is the quickest mousse you will ever make. It’s incredibly dense and luxurious and yields pure pleasure with every bite, sure to become part of your cooking repertoire long after the holiday is over. With few ingredients, the chocolate is the star. The mousse is kept refrigerated—not frozen—to maintain a creamy and rich texture. What I also love about this mousse is, besides for the chocolate, there are not much added fats. You can serve this mousse in mini dessert cups for a perfectly portioned sweet ending or double the recipe and serve in martini glasses.