Ingredients:

For the Dough:

1 cup water
1 1/2 sticks (170 grams) unsalted butter
2 3/4 cups (349 grams) all-purpose flour
2 teaspoons salt
Pinch of paprika

For the Beef Filling:

3 tablespoons olive oil, divided
1 pound ground beef (85-90% lean)
1 small yellow onion, peeled and minced
½ red bell pepper, cored, seeded, and finely diced
½ green bell pepper, cored, seeded, and finely diced
½ cup frozen peas
2 cloves garlic, finely minced
1 teaspoon oregano
1 teaspoon salt
1/2 teaspoon paprika
1/2 teaspoon red pepper flakes
1/2 teaspoon ground white pepper
1/2 teaspoon ground cumin
¼ cup beef broth
1-2 tablespoons tomato paste, to preference
1 small russet potato, peeled, finely diced, and boiled*
3 scallions, trimmed and chopped
1/2 cup shredded monterey jack cheese optional

For the Egg Wash:

1 egg
3 tablespoons water

Instructions:

For the dough:

In a medium saucepan over medium heat, add the water and butter, heating until butter has fully melted. Meanwhile, in a large bowl, whisk together flour, salt, and paprika and make a well in the center. Pour a little of the warm butter mixture in and mix with your fingertips to make a wet paste. Pour in remaining liquid, and work the dough with your hands until you get a wet, oily dough. Wrap the dough in plastic and refrigerate for at least 2 hours.

For the filling:
Preheat the oven to 400°F. Line a large baking sheet with parchment paper or a silicone baking mat.
Heat 2 tablespoons of oil in a large skillet over medium heat. Saute the beef, cooking until browned, about 10 minutes. Remove the beef with a slotted spoon and set aside. Reserve 2 tablespoons of drippings.
With the remaining 1 tablespoon olive oil and 2 tablespoons of drippings, sauté the yellow onion until translucent, 10-15 minutes. Then add the bell peppers, peas, garlic and seasonings.
After a few minutes, deglaze the pan with ¼ cup of beef broth, then add 1-2 tablespoons of tomato paste (to preference).
Once the tomato paste has dissolved, mix in the beef and potatoes. Remove from heat.

To assemble:
Tear off golf-ball sized pieces of the chilled dough and roll into balls. On a lightly floured work surface, use a rolling pin to roll out the balls into 1/4-inch thick, 5-inch diameter circles.
Once your dough has been rolled out, place 2 heaping tablespoons of filling in the center of each dough circle. Add ½ teaspoon scallions to each circle, and sprinkle lightly with cheese, if using. Brush a small amount of egg wash lightly over one half edge’s border. Fold over the dough to create a half-moon shape and press edges firmly to seal. Crimp edges with the back of a fork.
Place empanadas onto the prepared baking sheet. Lightly beat together the egg and water. Brush the empanadas gently with the egg wash.
Bake empanadas until golden brown, about 20 minutes. Serve warm.