This lemon raspberry mousse cake is a refreshing and tangy dessert that is perfect for summer. The cake is made with a lemon sponge cake, layered with a creamy raspberry mousse, and topped with fresh raspberries. The raspberry mousse is made with fresh raspberries, whipped cream, and gelatin, giving it a light and airy texture. The lemon sponge cake adds a tangy and refreshing flavor that complements the sweet and tangy raspberry mousse.