Dough
2 cups all purpose flour
1/2 teaspoon of salt
1/2 teaspoon of baking powder
4 tablespoons of butter
1/4 cup ice water

Filling:
2 tablespoons vegetable oil
1/2 cup white onion, shredded
1/2 bell pepper, diced
2 garlic cloves, minced
1/2 teaspoon ground achiote
1 teaspoon ground cumin
1/2 pound ground beef
1 cup diced and cooked potatoes
1/2 cup beef broth
Salt to taste
1 egg yolk

Make the filling: In a large skillet, heat the oil. Add the onions, bell pepper, garlic, achiote, cumin and cook for about 6 minutes over medium heat. Add the beef and cooked potatoes, and cook for about 7 minutes. Add the broth, season with salt and cook until meat is cooked through.

Make the dough: Place the flour and salt in a food processor. Add the butter, and water until a dough forms. Form a ball, cover with plastic wrap and place in the refrigerator for about 30 minutes.

On a lightly floured surface, roll out the dough into a thin rectangle. Cut out round disc shapes with a round cutter or a small plate. Fill empanada discs with beef mixture. Brush the edges with egg and close the filling by pressing the edges together to form a half moon. reheat oil in a deep pot to 375 degrees F. Fry the empanadas in the oil for about 3 minutes on each side. Remove from the oil and drain on paper towels.