Method:

1. To make the pastry, place the flour, sugar and butter in a food processor, and blend to a fine breadcrumb texture. Add the egg yolks, one at a time, and mix until the dough just comes together. Wrap in plastic wrap and freeze.
2. To make the filling, pulse the almonds in a food processor to a coarse crumb.
3. Whisk the butter and sugar in a food processor to give a soft but not overly whipped mixture. Scrape in the seeds from the vanilla pod and add the almond meal and salt. Mix thoroughly. Then add the eggs one by one in fluted loose-bottomed tart tin. Grate half of the pastry into the prepared tin.
4. Using the tips of your fingers, press the pastry over the base. Grate the remaining pastry in and press into the edges of the tin, to the same thickness as the bottom. Rest in the fridge for at least 30 minutes.
5. Preheat the oven to 180°C. Bake the tart case, uncovered, for 15 minutes until lightly golden, Set aside to cool.
6. Cut your apricots in half and remove the seeds. Toss them in vanilla sugar if you have but not necessary. Pour your filling into the tart shell and arrange you apricots cut side up evenly to fill the tart.
7. Bake for 30 minutes, or until just firm and golden brown. Allow to cool.