I can't help but mention the treacle tart because it happens to be Harry’s favorite dessert. Treacle tart is a sweet pastry consisting of a buttery shortcrust base and a gooey filling made from treacle (aka golden syrup), breadcrumbs and lemon zest. The first mention of a treacle tart recipe dates back to a 19th century cookbook by English author Mary Jewry. It is a quintessential British teatime dessert. It is traditionally served warm with clotted cream, whipped cream, or custard. You can also serve it with ice cream. Have you already tried it?