01 -
Combine flour, sugar, vanilla sugar, salt, and baking powder in a bowl. Add cubed cold butter and rub into dry ingredients until mixture resembles coarse crumbs. Incorporate eggs and gently mix to form a soft dough. Avoid over-kneading.
02 -
Shape the dough into a ball, wrap in plastic, and freeze for 30 minutes to enhance flakiness.
03 -
Grease a 24 cm tart or springform pan with butter and set aside.
04 -
Whisk egg yolks, sugar, cornstarch, and lemon zest in a saucepan. Gradually add milk while whisking to avoid lumps. Heat over medium and stir until thickened into a custard. Remove from heat and stir in lemon juice. Let cool slightly.
05 -
Roll or press chilled dough into the tart pan, covering the base and sides. Pour the slightly cooled custard into the crust and smooth the surface.
06 -
Sprinkle almond flakes on top. Bake in a preheated oven at 180°C (360°F) for 45 to 50 minutes until golden and set.
07 -
Allow tart to cool completely before removing from pan. Dust with powdered sugar prior to serving.