Coney Island Hot Dog Recipe

Name: Coney Island Hot Dog Recipe
Ingredients: 1 tablespoon vegetable shortening; 1 pound ground beef; ¼ cup soda cracker (e.g. Saltine) crumbs; 1 yellow onion, grated; 4 cloves garlic, minced; 2 tablespoons tomato paste; 1 tablespoon Worcestershire sauce; 1 teaspoon yellow mustard; 1 tablespoon chili powder; 1 tablespoon paprika; 2 teaspoons salt; 1 teaspoon cumin; ½ teaspoon cayenne; ½ teaspoon allspice; 1 cup beef broth, or more as needed; 4 hot dogs; 4 hot dog buns; 1 cup finely diced white onion; Yellow mustard, for garnishing