 The pastry consists of a large proportion of butter and egg yolk, besides using corn starch, giving it a rich, buttery, tender and melt-in-the-mouth texture.The pineapple jam is usually made by slowly reducing and caramelizing grated fresh pineapple that has been mixed with sugar and spices - usually cinnamon, star anise and cloves.Typical shapes include a flat, open tart topped with pineapple jam under a lattice of pastry, rolls filled with jam that are open at the ends, and jam-filled spheres or elongated shape.