Centered - Leopold 1

Ingredients

• 2 tablespoons olive oil, divided
• 1 onion, diced
• 1 pound ground beef
• 1 pound ground pork
• 1/2 cup Panko
• 2 large egg yolks
• 1/4 teaspoon ground allspice
• 1/4 teaspoon ground nutmeg
• Kosher salt and freshly ground black pepper, to taste