Divide the dough into two pieces. On a greased countertop roll each piece into a very large circle, about 1/8in thick (not so thin that it might break when filling or baking).
Use a small bowl or round cookie cutters to cut the dough into circles about 6in in diameter for regular size empanadas or 3 inch for mini empanadas (empanaditas).
Remove the excess dough from around the cut circles and keep the circles where they are for filling them (so they hold their perfect circle shape). Leftover scraps can be re-rolled to make more dough to cut out.
Place about 2 tablespoons of filling (for regular size empanadas) in the center of each circle, leaving plenty of space around the border. Moisten the edges of the circle with water, then fold the dough over and match the ends together to form a semi-circle.
Pinch the edges together and then seal the ends by crimping them with a fork or pinching and twisting/folding it over.
Baked Empanadas: Place empanadas on a baking sheet lined with parchment paper. Brush with a little bit of egg wash and bake at 375° For 25-30 minutes until golden brown and fully cooked.
Fried Empanadas: (I’ve found it best to refrigerate the empanadas for 20 minutes before frying to help the dough firm up and hold its shape before placing in the hot oil). Add several inches of hot oil to a pot and heat to about 365° F. Fry one or two empanadas at a time, flipping once, until golden on both sides (1-2 minutes per side). Place on a paper-towel lined plate.