Ingredients
Scale
- 1½ lbs ground beef
- ½ cup breadcrumbs
- 1 large egg
- 1 tablespoon Worcestershire sauce
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1 teaspoon dried parsley
- 1 teaspoon salt
- ½ teaspoon black pepper
- 2 large yellow onions, thinly sliced
- 2 tablespoons butter
- 1 tablespoon olive oil
- 2 tablespoons all-purpose flour
- 2 cups beef broth
- 1 tablespoon Worcestershire sauce
- 1 teaspoon Dijon mustard
- ½ teaspoon dried thyme
- Salt and pepper to taste