Luxury Chocolate Tart: Layers of melted indulgence with an irresistible creamy filling and a magical dusting of powdered sugar! 🍫🍫 Dive into a world of rich flavors with this decadent tart, which combines a crunchy chocolate biscuit crust, a smooth, melt-in-the-mouth creamy filling, and a generous topping of glossy chocolate ganache. This masterpiece is adorned with a light dusting of powdered sugar, adding a touch of elegance and making every bite an unforgettable experience. Perfect for any occasion, this tart is an invitation to enjoy moments of happiness.

Prepare the base:
Mix the crushed biscuits with the melted butter well.
Place the mixture in a loose-bottomed tart tin (24cm diameter) and press down to level out.
Refrigerate for 30 minutes to cool and set.
Prepare the cream filling:
In a saucepan over medium heat, combine the milk, sugar, and cornflour.
In a separate bowl, whisk the egg yolks with the vanilla.
Add a little of the hot milk mixture to the egg yolks, stirring continuously, then return the entire mixture to the saucepan over the heat.
Continue stirring until the mixture thickens and becomes a smooth cream.
Pour the cream over the cooled biscuit base and spread evenly.
Return the tart to the refrigerator to cool completely and allow the cream to set.
Prepare the chocolate topping:
In a small saucepan, heat the whipping cream until it begins to boil.
Remove from the heat and add the chocolate pieces and butter (if using).
Leave for a minute, then stir well until the chocolate is melted and the sauce becomes smooth and glossy (ganache).
Pour the chocolate ganache over the set cream layer and spread gently.
Serving:
Return the tart to the refrigerator for at least 2 hours, or until the chocolate layer is set.
When serving, dust with a little powdered sugar or cocoa powder, if desired.