Start by making a simple shortcrust. Combine the flour, butter, sugar, and a pinch of salt in a bowl until a dough forms.
Press the dough into a tart pan, making sure to create an even layer on the bottom and up the sides.
Chill the crust for a while, or bake it briefly if you prefer, then set it aside.
In a saucepan, mix together the yuzu juice, sugar, whole eggs, egg yolks, and butter.
Cook this mixture over low heat, stirring constantly, until it thickens into a smooth and creamy filling.
Pour the yuzu filling into the prepared crust and smooth out the top.
Let the tart cool completely, then place it in the refrigerator until it firms up.
Just before serving, arrange fresh raspberries around the edge of the tart.
