A blancmange is a European dessert traditionally made with a gelatin-based thickener. In the Harry Potter series, this dessert is seen in Harry Potter and the Goblet of Fire during the Triwizard feast. It might have also been made by Fleur Delacour while the trio was staying at Shell Cottage in Harry Potter and the Deathly Hallows.
This recipe has a little twist to the traditional recipe. It gives a combination of blancmange with a crème brûlée recipe, hence the name blancmange brûlée. It is a much denser custard with a hint of almond flavoring and a caramelized sugar topping.
Note: If you want to do a traditional crème brûlée, substitute 2 vanilla bean pods (scraped) or 2 teaspoons of vanilla extract instead of the 2 teaspoons of almond extract.