2½ lbs apples, peeled, halved, cored, and each half cut into slices
½ cup sugar
1 tablespoon lemon juice
½ teaspoon ground cinnamon
½ tablespoon vanilla or 1 vanilla bean
BRETON PASTRY
8 oz (2 sticks) unsalted butter, softened
1 cup sugar
½ teaspoon salt
1 teaspoon vanilla
4 egg yolks
2½- 2⅔ cups all-purpose flour
egg wash: 1 egg beaten with a pinch of salt
Instructions
APPLE FILLING
Melt the butter over medium heat in a large pan.
Add the apples and sprinkle them with the sugar, lemon juice, cinnamon, and vanilla (if using a vanilla bean, split it and scrape out the seeds, adding both the seeds and pod to the apples. Remove the pod when they are done cooking).
Cook the apples, stirring occasionally, until they have softened and most of the juices have evaporated. You don't want your filling too soupy or it will seep through the crusts. A little liquid is fine.
Remove from heat when they have cooked.
Meanwhile, preheat your oven to 350 F.
BRETON PASTRY
Combine the butter, sugar, salt, and vanilla. Cream in the bowl of an electric mixer until light and fluffy, about 5 minutes. This will make the baked dough light and delicate.
Add the egg yolks, one at a time, beating until smooth after each addition.
Remove the bowl from the mixer and use a rubber spatula to fold in the flour. Start with 2½ cups; if the dough seems very loose still add another little scoop. The dough should look like cookie dough- stiff and just slightly sticky.
Place half the dough in the bottom of a 10" cake pan that has been greased and lined with a round of parchment paper.
Use your fingertips to push the dough evenly over the bottom and about 1" up the sides.
Spread the cooled filling (it's ok if it's a little warm) over the dough.
Flour the remaining dough and roll or press it into a 10" disk on a cardboard or tart pan bottom. Use a long bladed knife or spatula to make sure it isn't stuck to the cardboard.
Slide the dough off the cardboard and onto the filling. Pinch the edges to seal the filling.
Brush the top of the pie with the egg wash and trace a lattice pattern with the tines of a fork.
Bake the breton until the dough is well colored and baked through, 45-55 minutes.
Cool on a rack in the pan for 30 minutes, then unmold and turn right side up again. Cool completely on a rack.
Recipe by High Altitude Bakes at https://highaltitudebakes.com/pies/2013/07/09/apple-breton-pie/