21 Burger

Ingredients

• 2 stalks celery, finely chopped
• 3 tablespoons butter, divided
• 2 pounds ground sirloin
• 1/4 cup bread crumbs
• 1 (1-ounce) packet au jus gravy mix (recommended: McCormick)
• 4 hamburger buns, toasted

Directions

Preheat oven to 400 degrees F.

In a large, oven-proof skillet, over medium heat, saute celery in 1 tablespoon butter, about 4 minutes. Remove celery and let cool.

In a medium bowl, stir to combine ground sirloin, bread crumbs, au jus mix, and sauteed celery. Form into 4 patties.

Melt remaining butter in skillet. Carefully place patties in skillet and cook 2 to 3 minutes, or until browned on 1 side. Flip patties and place in preheated oven. Cook for 12 to 15 minutes for medium doneness.

Serve hot on toasted buns with desired condiments.