Prepare the Short Crust Pastry
Let’s start with the foundation of our tart—the Short Crust Pastry . Combine flour, salt, and sugar in a bowl. Add cold butter cubes and work them in until the mixture resembles coarse crumbs. Mix in the egg yolk and gradually add ice water until the dough comes together. Roll it out slightly larger than your pan, press it gently into place, and prick the bottom with a fork. Chill it for an hour—it’s like giving your dough a little spa treatment!
Whisk Up That Dreamy Custard
Now for the star of the show: the Vanilla Custard . In a bowl, whisk eggs, yolks, sugar, and cornstarch until frothy. Heat milk and cream in a saucepan until it simmers, then slowly temper the hot liquid into your egg mixture while whisking constantly. Return everything to the pan and cook until thickened.
Strain it through a fine sieve to ensure silkiness, then stir in vanilla bean paste and extract. Voilà! Your custard is ready.
Assemble and Bake
Pour the cooled custard into your chilled pastry shell and smooth the top. Place the tart on a baking sheet (to catch any leaks) and bake at 375°F for about 70-75 minutes. Keep an eye on the crust—if it starts browning too quickly, cover it with foil. When done, the center should still have a slight jiggle—it’ll firm up as it cools.
Chill and Serve
Once baked, let the tart cool completely before chilling it in the fridge for at least 6 hours (overnight is ideal). This step is crucial for achieving that melt-in-your-mouth texture. Slice, serve, and watch the magic happen.