Source: Ina Garten (adapted) Ingredients: 1 tablespoon olive oil 1 large onion, finely diced 1/3 teaspoon dried thyme 2 teaspoons kosher salt black pepper, to taste 3 tablespoons Worcestershire sauce 1/3 cup beef broth 1 tablespoon tomato paste 2 1/2 lbs. ground beef (80/20) 1/2 cup plain breadcrumbs 2 eggs, beaten 1/2 cup ketchup Directions: Heat the olive oil in a medium saute pan. Add the onion, thyme, salt and pepper and cook over medium-low heat, stirring occasionally, for 8-10 minutes or until the onion is translucent but not brown. Off the heat, add the Worcestershire sauce, broth and tomato paste. Stir to combine and allow to cool slightly. In a large mixing bowl, combine the beef, onion mixture, breadcrumbs and eggs. Mix lightly with a fork; do not mash. Shape the mixture into a large rectangular loaf on a sheet pan lined with parchment paper. Spread the ketchup evenly over the top. Bake at 325 for an hour to an hour and fifteen minutes.