Best Hamburger Ever - Sutter Home Family Vineyards

Ingredients

• 1 lb. 80% ground beef
• 1 lb. hot pork Sausage
• 2 Tablespoons Soy Sauce
• 3 Eggs slightly beaten
• 1 teaspoon freshly ground black pepper
• 3 Tablesoons unsalted butter
• Gruyere cheese cut into 1/2