Moroccan Dafina (Overnight Stew)

Ingredients

• 1 pound ground beef
• 1½ teaspoons kosher salt
• ½ teaspoon freshly ground black pepper
• 1 teaspoon za’atar
• 1 teaspoon paprika
• ½ cup flat-leaf parsley, chopped
• 1 Cornish game hen
• 1 teaspoon kosher salt
• 2 large onions, thinly sliced
• 2–3 beef marrow bones
• 8 Russet potatoes, peeled and cut into large chunks
• 2 bay leaves
• 1 teaspoon freshly ground black pepper
• 2 teaspoons garlic powder
• 1 pinch saffron
• 4–5 cups water
• 8 large eggs, in their shells