This is a recipe video for a crispy croissant cake with plenty of ganache, easily made with just four ingredients. After thawing the frozen puff pastry, cut it into triangles and roll them out thinly with a rolling pin to shape them into croissants. Arrange the shaped croissants in a round pan, brush with beaten egg, and bake in a preheated oven at 180°C for 20-25 minutes. Once the baked croissants have cooled slightly, pour in a rich ganache made from melted dark chocolate, milk chocolate, and heavy cream, and chill in the refrigerator for 3 hours to set. The combination of the crispy texture of the freshly baked cake and the melting ganache is exquisite, making it perfect for a home café or as a gift.