Egg tart is a kind of western-style pie with egg paste as the filling, Hong Kong's authentic egg tarts are categorized by tart crust, which is mainly divided into two kinds of tarts: butter egg tart and puff pastry egg tart. Butter egg tart crust is relatively smooth and complete, like a basin-shaped cookie, with a butter flavor. Puff pastry tart tart skin for a layer of thin pastry, similar to the pastry butter pastry.