Mix the flour with the yeast and sift into a bowl. Add the butter in hazelnuts and stir in kneading. Add sugar, salt and egg, and knead until smooth. Form a ball with the dough and enclopper in food film. let stand for 1 hour fresh.

Meanwhile, peel the apples, remove the heart quarts. drizzle gently with the lemon juice.

Spread the dough, pinch with a fork.

Arrange the apple quarters fan-shaped on the dough. sprinkle with calvados. mix the sugar and cinnamon with the hazelnuts, and sprinkle the apples with the mixture

Put the pie about 45 minutes in the oven. let cool, then baste with the apricot jam slightly warmed.