Step 1: Prepare the Potatoes

• Peel and boil the potatoes in salted water until tender.
• Mash the cooked potatoes until smooth, adding a pinch of salt to enhance flavor. Let the mashed potatoes cool slightly so they’re easier to handle.

Step 2: Make the Filling

• Heat a drizzle of oil in a skillet over medium heat. Add the onions and garlic, sautéing until soft and fragrant.
• Stir in the ground beef and cook until browned. Season with paprika, cumin, salt, and pepper.
• For an authentic touch, fold in chopped hard-boiled eggs once the beef has cooled slightly.

Step 3: Assemble the Papas Rellenas

1. Take a handful of mashed potatoes and flatten it into a disc.
2. Add a spoonful of filling to the center.
3. Gently fold the edges of the potato over the filling, sealing it completely. Shape it into a ball or oval.

Step 4: Coat and Fry

• Dredge each stuffed potato in flour, dip in beaten eggs, and coat with another layer of flour.
• Heat oil in a deep skillet to 180°C (350°F). Fry the papas rellenas in batches, turning occasionally, until golden brown and crispy.

Step 5: Drain and Serve

• Transfer the fried croquettes to a plate lined with paper towels to drain excess oil. Serve warm with your favorite accompaniments.