# What You Need:
→ Pastry
01 - 2 sheets puff pastry (about 17.6 oz, thawed if frozen)
02 - 1 egg (for egg wash)
03 - 1 tablespoon milk
→ Apple Filling
04 - 3 medium golden apples, peeled, cored, and diced
05 - 2 tablespoons unsalted butter
06 - 1/4 cup granulated sugar
07 - 2 tablespoons brown sugar
08 - 1 teaspoon ground cinnamon
09 - 1/4 teaspoon ground nutmeg
10 - 1/2 teaspoon pure vanilla extract
11 - 1 tablespoon lemon juice
12 - 1 tablespoon cornstarch
→ Optional Topping
13 - 2 tablespoons coarse sugar, for sprinkling
# Directions:
01 - Set oven to 400°F and line a baking sheet with parchment paper.
02 - Melt butter in a skillet over medium heat, then add diced apples, granulated sugar, brown sugar, cinnamon, nutmeg, and lemon juice. Cook for 4 to 5 minutes, stirring occasionally until the apples start to soften.
03 - Stir in vanilla extract and cornstarch, cooking for 1 to 2 more minutes until the mixture thickens. Remove from heat and allow to cool slightly.
04 - On a lightly floured surface, roll out puff pastry sheets if needed. Cut each sheet into 4 equal squares, yielding 8 squares total.
05 - Place a generous spoonful of the apple filling in the center of each square. Fold each square into a triangle, sealing the edges by pressing firmly and crimping with a fork.
06 - Place the turnovers on the prepared baking sheet.
07 - Whisk the egg with milk and brush the mixture over the turnovers. If desired, sprinkle with coarse sugar for added texture.
08 - Use a sharp knife to cut a small slit on top of each turnover to allow steam to escape. Bake for 20 to 25 minutes until golden brown and puffed.
09 - Transfer turnovers to a wire rack and let cool for 10 minutes before serving.