In a bowl, crumble together the flour, cold butter, and powdered sugar. Add the egg yolk and ice water. Knead until you have a smooth dough. TIP: Work quickly so the butter doesn't melt.
Shape the dough into a ball, wrap it in plastic wrap, and refrigerate for 30 minutes.
Meanwhile, prepare the walnut filling: in a saucepan, heat the milk, add the granulated sugar, vanilla sugar, and cinnamon. Stir in the ground walnuts. TIP: Don't boil; just heat the ingredients until combined.
Preheat the oven to 350°F (180°C) and grease a pie dish.
Roll out two-thirds of the dough and line the pie dish with it. TIP: Rolling the dough onto a rolling pin makes it easy to transfer.
Fill the pie crust with the walnut filling. Cut the remaining dough into strips and arrange them over the top in a lattice pattern.
Bake the pie for 35-40 minutes, or until golden brown. TIP: If the edges brown too quickly, cover them with aluminum foil.
Let the pie cool before slicing and serving. TIP: Dusting with powdered sugar makes it even more delicious.
To provide the best experiences, we and our partners use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us and our partners to process personal data such as browsing behavior or unique IDs on this site and show (non-) personalized ads. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Click below to consent to the above or make granular choices. Your choices will be applied to this site only. You can change your settings at any time, including withdrawing your consent, by using the toggles on the Cookie Policy, or by clicking on the manage consent button at the bottom of the screen.