Apple Turnovers

Steps

• Filling: Cook the apples, butter, brown sugar, cinnamon, and lemon juice over medium heat, stirring, until the apples soften and most of the liquid cooks off.
  ⏱ Start 6 min timer
• Filling: Stir the cornstarch into a spoonful of the hot liquid to dissolve it, then stir back into the pan and cook another minute until thickened.
  ⏱ Start 1 min timer
• Filling: Spread on a plate and cool completely.
  ⏱ Start 20 min timer

  Tip: Warm filling melts the pastry's butter layers on contact. It needs to be fully cool, not just off the stove.

• Shape: Roll the pastry out and cut into 8 squares, about 4 inches each. Spoon filling onto one half of each square, fold the other half over into a triangle, and crimp the edges with a fork to seal.
• Bake: Transfer to a lined sheet, cut 2–3 small vents in the top of each, brush with egg wash, and sprinkle with coarse sugar if using.

  Tip: The vents give the small amount of remaining steam a controlled way out — without them it finds its own way, usually by bursting a seam.

• Bake: Bake at 200°C (400°F) until deeply golden and puffed.
  ⏱ Start 22 min timer