Using a food processor, add the flour and butter and pulse together until it looks like large "peas".
In a separate bowl, mix together the egg, water and vodka and whisk to incorporate.
Add the egg and water mixture to the flour and pulse together until the dough just comes together and looks like very wet sand.
Next, turn the dough onto a lightly floured surface and form into a disc. Wrap in plastic wrap and chill in the refrigerator for at least 30 minutes.
When ready, remove the dough from the fridge and cut in half. Roll half of the dough on a lightly floured surface to about ¼ in thick or about 9in. in diameter. Note* Because I was using whole wheat, the flour was a little finicky, but don't worry, the more you work it, the more flexible it will be. Just don't roll it too thin.
Next, use a 3in. round cookie cutter and cut out circles.
Fill each circle with 1 teaspoon of beef filling and don't overfill. Wet the edges of the dough with your finger and seal the empanada on all sides. Use a fork to crimp the edges as well. Repeat with remaining dough and filling.
In a small bowl, mix together egg wash ingredients, egg and water, set aside.
Place all empanadas on a non-stick baking sheet. Brush with egg wash and sprinkle with salt. Bake at 400 degrees F for 20-25 minutes