Ingredients
Equipment
Method
Make the pastry
- Whisk the flour, kosher salt, and granulated sugar in a large bowl.
- Cut in the cold unsalted butter with a pastry cutter until the pieces are about pea-sized.
- Sprinkle the ice water over the mixture and stir just until the dough holds together when pressed.
- Divide the dough in half and shape each half into a disk.
- Wrap the disks and refrigerate for 1 hour.
Cook the apple filling
- Melt the unsalted butter in a small saucepan over medium heat.
- Stir in the apple, brown sugar, cinnamon, lemon juice, and kosher salt.
- Cook for 5 to 7 minutes, stirring often, until the apple is tender.
- Stir the cornstarch and water together, then add the mixture to the saucepan.
- Cook for 1 minute until the juices are thick.
- Transfer the filling to a bowl and cool completely.
Assemble and bake
- Heat the oven to 375°F.
- Line a large baking sheet with parchment paper.
- Roll each dough disk between sheets of parchment to 1/8-inch thickness.
- Cut out 24 circles with a 3-inch cutter, rerolling scraps as needed.
- Place 12 circles on the prepared baking sheet and add 1 tablespoon of cooled filling to the center of each.
- Cover with the remaining circles and press the edges closed with a fork.
- Beat the egg with the teaspoon of water.
- Brush the tops of the cookies with the egg mixture.
- Cut two small vents in each cookie and sprinkle with coarse sugar.
- Refrigerate the assembled cookies for 15 minutes.
- Bake for 18 to 22 minutes, until the pastry is golden brown.
- Cool on the baking sheet for 10 minutes before transferring to a rack.
Notes
For neat edges, keep the pastry cold while assembling. Store cookies in an airtight container in the refrigerator for up to 3 days; freeze for up to 2 months. For a dairy-free variation, use a dairy-free butter substitute in the pastry and filling.
