This passion fruit and pistachio cake is a unique dessert that is perfect for a dinner party. The cake is made with a combination of all-purpose flour, baking powder, salt, sugar, eggs, butter, passion fruit puree, and chopped pistachios. The cake is moist and flavorful, with a tangy passion fruit flavor that is complemented by the nutty flavor of the pistachios. The cake is easy to make and can be served with a dollop of whipped cream or a sprinkle of chopped pistachios.