Preheat the oven to 170°C and bring eggs to room temperature.

In a bowl, sift flour and salt, then add cold butter. Mix with a spatula until crumbly. Add egg yolk and cold water, forming a dough. Wrap and chill for 30 minutes.

Cut walnuts into quarters. In a bowl, whisk eggs and mix with all filling ingredients.

Roll out the dough thinly and place it in a tart pan. Poke holes with a fork.

Fill the tart with the prepared filling, leaving space at the top.