Ingredients
The following ingredients have 4 Servings
- 1 1/2 lb ground beef
- 2 tablespoons Worcestershire Sauce
- 2 cloves garlic (grated)
- handful of parsley (finely chopped)
- salt and pepper
- 4 brioche rolls (sliced and grilled)
- 4 slices of Swiss cheese
- arugula leaves
- 1 tablespoon olive oil
- 3 tablespoons butter
- 2 onions (thinly sliced)
- 1/2 teaspoon ground thyme
- 1 bay leaf
- 1/2 cup beef broth
- 1 tablespoon light brown sugar
- 1 tablespoon balsamic vinegar
- salt and pepper
