This passion fruit and pistachio cake is a unique dessert that combines the nuttiness of pistachios with the tanginess of passion fruit. The cake is made with ground pistachios and passion fruit puree, giving it a rich and nutty flavor. The pistachio cream cheese frosting is smooth and creamy, with a hint of sweetness that complements the tanginess of the passion fruit. This cake is perfect for a special occasion or a dinner party.