# What You'll Need:
→ Pastry
01 - 2 sheets puff pastry (approximately 17.6 oz), thawed if frozen
02 - 1 large egg (for egg wash)
03 - 1 tablespoon whole 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 fresh lemon juice
12 - 1 tablespoon cornstarch
→ Optional Topping
13 - 2 tablespoons coarse sugar, for sprinkling
# How to Make It:
01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - Melt butter in a skillet over medium heat. Add diced apples, granulated and brown sugars, cinnamon, nutmeg, and lemon juice. Cook, stirring, for 4–5 minutes until apples soften.
03 - Stir in vanilla extract and cornstarch. Continue cooking for 1–2 minutes until mixture thickens. Remove from heat and allow to cool slightly.
04 - On a lightly floured surface, roll out puff pastry sheets if necessary. Cut each sheet into four equal squares, yielding eight squares total.
05 - Place a generous spoonful of apple filling in the center of each square. Fold squares into triangles. Press edges firmly to seal and crimp with a fork.
06 - Place turnovers on the prepared baking sheet, spaced evenly.
07 - Whisk together egg and milk. Brush mixture over turnovers. Sprinkle with coarse sugar if desired.
08 - Use a sharp knife to make a small slit on top of each turnover to allow steam to escape.
09 - Bake in preheated oven for 20–25 minutes until turnovers are golden brown and puffed.
10 - Transfer turnovers to a wire rack and cool for 10 minutes prior to serving.
