This no-bake raspberry mousse cake is a quick and easy dessert that requires no baking. To make the cake, you will need to prepare a graham cracker crust using crushed graham crackers and melted butter. Then, you will need to make the raspberry mousse by blending fresh raspberries, sugar, and whipped cream. Once the mousse is ready, pour it over the graham cracker crust and refrigerate for a few hours until set. Serve the cake chilled with fresh raspberries on top.