Chocolate Italian Sponge Cake with Summer Berries and Chocolate Mousse

"This Italian (Genoise) Chocolate Sponge Cake is light and airy and filled with a quick, easy and delicious chocolate mousse, loads of summer berries like raspberries, strawberries, blackberries and blueberries, with a delicious, light stabilized whipped cream icing. It's easy to make, but sure to impress and is the perfect summer celebration cake, birthday cake idea, potluck or BBQ! I recently made this cake for my husband’s birthday and it was AMAZING. My family went crazy for it!"