Ground Beef: 450 grams
Yellow Onion: 1
green bell pepper: 1
Garlic: 3
Tomato Sauce: 240 milliliters
Tomato Paste: 2 tablespoons
ketchup: 3 tablespoons
worcestershire sauce: 1 tablespoon
yellow mustard: 1 teaspoon
Brown Sugar: 1 tablespoon
Chili Powder: 1 teaspoon
Smoked Paprika: 1/2 teaspoon(Optional)
Salt: 1 teaspoon
Black Pepper: 1/2 teaspoon
Olive Oil: 1 tablespoon
Beef Broth: 120 milliliters
hamburger buns: 4
Butter: 2 tablespoons(Optional)