Preheat the oven to 400 degrees F.
Peel the apples and slice them into quarters. Cut each quarter of apple into three pieces.
In a medium saucepan, melt the butter. Add apples, cinnamon, brown sugar, salt, and vanilla to the pan and stir to combine.
Cook the apple filling over medium heat and let it simmer until the apples start to soften (about 5 minutes).
When the apple pie filling is done, let it cool while you prepare the pie crusts.
Separate the two pie crusts that come in the package and unroll them.
Cut 3 circles out of each pie crust. If you can't get 3 circles out of the the pie crust, you can gather the scraps and roll them out until you have enough to make another circle.
Make sure the apples are cooled before adding the apple filling to the middle of dough. Fill each dough circle with ¼ to ⅓ of a cup of the cooked apples.
Now it's time to fold the dough. Fold the top part of the dough over the bottom part and press down with your fingers. Once the dough is sealed, you can fold it again like an envelope and pinch it.
Place the turnovers on a parchment lined baking sheet.
Make 3 small slits at the top of each of the mini apple pies with a sharp knife.
Crack an egg and beat it in a small bowl. Use a pastry brush to apply the egg to the top of each hand pie.
Before placing in the oven, sprinkle coarse sugar over the top of the apple turnovers.
Bake in a 400 degree oven for 25 minutes, until the tops have turned a golden brown.
Let these sweet apple hand pies cool for 15 minutes before eating as the filling will be very hot.