Prepare the base for the galette. To do this, mix the flour, sugar, salt in a bowl, cold butter cut into cubes, add to flour.
Very quickly grind the butter with flour or punch in a blender to a state of coarse crumbs. I'm using a blender.
Pour ice water. Pre - it is better to cool in the freezer. Quickly mix with flour. If the dough is dry, add another tablespoon of water.
Gently mix on a lightly floured surface until the dough is in a ball.
From the dough to form a flat disc, wrap in plastic wrap and place in the refrigerator for at least 1 hour.
The dough can be stored in the refrigerator for 3 days, in the freezer - up to three months.
While the dough is cooled, prepare the filling.
Wash apples, peel and core, cut into thin slices. Add brown sugar, flour, lemon juice, cinnamon and nutmeg. Gently mix, tightly close the lid, put in the refrigerator and allow to infuse.
Preheat oven to 375F or 190C
Lay the baking sheet with parchment or silicone Mat.
On a lightly floured surface, roll out the dough into a circle with a diameter of about 25-30 cm. Transfer the dough to a baking sheet.
On the dough evenly put Apple slices, not reaching the edges of 5-6 cm.
Gently wrap the edges of the dough on the filling, pinching in a circle.
Apples evenly pour 3 tablespoons of the salty caramel, trying not to fall on the dough.
Recipes for salted caramel on the site a sufficient amount, so I'm not describing it here, use any. In this recipe I used the recipe "Homemade salted caramel sauce".
Mix egg with milk and brush to lubricate the edges of galette, sprinkle with chopped walnuts.
Bake for 35-40 minutes until Golden brown.
Cool on a baking sheet for 10 minutes.
At this time, put the kettle, brew fragrant tea or coffee. Serve and serve with salted caramel sauce. Bon appetit!