Follow these steps to create perfectly crafted beef empanadas.

Step 1: Preparing the Dough

1. Mix Dry Ingredients: In a large bowl, combine the all-purpose flour and salt.
2. Add Butter: Incorporate the diced butter into the flour mixture using a pastry cutter or your fingers until it resembles coarse crumbs.
3. Blend Wet Ingredients: In a small bowl, whisk together the egg, ice water, and vinegar.
4. Combine Mixtures: Gradually add the wet mixture to the flour mixture, mixing until the dough comes together.
5. Knead and Chill: Turn the dough onto a floured surface and gently knead until smooth. Wrap in plastic and refrigerate for at least 1 hour.

Step 2: Preparing the Filling

1. Sauté Vegetables: Heat olive oil in a large skillet over medium heat. Sauté the onions, garlic, and red bell pepper until soft.
2. Brown the Meat: Add the ground beef to the skillet, cooking until browned. Drain excess fat if necessary.
3. Season: Stir in cumin, paprika, cayenne pepper, salt, and pepper. Mix well.
4. Add Final Ingredients: Incorporate the olives, raisins, and chopped boiled eggs into the beef mixture. Stir to combine and remove from heat.

Step 3: Assembling the Empanadas

1. Roll Out Dough: On a floured surface, roll out the dough to about 1/8-inch thickness.
2. Cut Circles: Use a round cutter or a bowl to cut circles of about 5 inches in diameter.
3. Fill and Fold: Place a tablespoon of filling in the center of each circle. Fold the dough over to create a half-moon shape.
4. Seal Edges: Press the edges with a fork or twist to seal securely.
5. Apply Egg Wash: Brush the top of each empanada with beaten egg for a golden finish.

Step 4: Baking

1. Preheat Oven: Preheat your oven to 375°F (190°C).
2. Bake: Place the empanadas on a baking sheet lined with parchment paper. Bake for 20-25 minutes or until golden brown.
3. Cool: Allow to cool for a few minutes before serving.