Ingredients

4 Tbsp Extra Virgin Olive Oil

4 Tbsp Butter

1 Yellow onion, medium and sliced thin

pinch Salt

pinch Black pepper

1/2 cup(s) Dry white wine

1/2 cup(s) Marsala wine

1/2 cup(s) Beef broth

2 Tbsp Balsamic vinegar

6 Beef Tenderloin filets (6 oz each)

dash Parsley, finely chopped

6 Fresh rosemary sprigs

Preparation

SAUCE PREPARATION Heat oil and butter in large saute pan over medium heat. Add sliced onions, salt, and pepper; cook 10 minutes or until carmelized (softened and golden browned), stirring frequently.

Add wines, broth, vinegar and bring to a boil. Reduce heat and simmer for 10-15 minutes or until sauce is reduced by half.

BEEF PREPARATION Lightly rub filets with oil; season with salt and pepper. Grill to preferred temperature.

Place onions and sauce on a platter and top with steaks. Garnish with parsley and rosemary.