Ingredients:
4 tablespoons butter or margarine (preferrably butter)
1 large onion, chopped
6 ounces mushrooms, chopped
1 1/2 lbs ground chuck (mix with French Onion Soup Mix)
1 1/2 teaspoons salt
1 teaspoon fresh ground black pepper
1 tablespoon A-1 Steak Sauce
flour (for coating)
2 tablespoons extra virgin olive oil
5 large kaiser rolls, lightly toasted and then placed face down for 1 minute on a pan with a dollup of butter (only cook the inside of the bun)
Accompaniments:
cheese, of your choice
1. In a large, heavy skillet, melt butter
2. Cook onions over medium-low heat until golden brown.
3. Add the mushrooms and continue cooking until mushrooms are tender.
4. Let sit until they are cool enough to handle.
5. In a large bowl, mix the ground chuck, salt, pepper, steak sauce, and onion-mushroom mixture.
6. Form into 5 thick burgers.
7. In same skillet, heat olive oil over medium heat.
8. Coat the burgers in flour and cook for 2 - 2.5 mins (only turn once)
9. Add cheese after turning and melt on top of burger - cook for 1.5 - 2 more mins (or your liking) but make sure that the cheese has melted.