To a large skillet set over medium high heat, add the chuck, pork, and onion. Break the meats and cook.
1 pound ground chuck, 1 pound ground pork, ½ yellow onion
Brown the meats and sauté the onion.
While the meat cooks, dissolve the beef bouillon cubes in the hot water.
2 beef bouillon cubes, ½ cup hot water
Drain all except 1-2 tablespoons rendered fat from the pan.
Add the bouillon and remaining ingredients to the browned meat.
1 tablespoon soy sauce, 1 tablespoon steak sauce, 1 tablespoon red wine vinegar, 1½ teaspoon ground black pepper, 1 teaspoon kosher salt
Simmer for 30 minutes. If the mixture becomes too dry, add a couple tablespoons of water.
Scoop the meat onto burger buns, add any toppings, and enjoy. (For cheesy burgers, cover about ⅛ of the meat mixture with one slice of cheese and let it melt before scooping and serving.)
Buns, American cheese slices, diced white onions, pickles, and mustard