Step 1

Season steaks with salt and half of pepper, press evenly onto beef steaks.

Step 2

Place steaks on grid over medium, ash-covered coals or over medium heat. Grill, covered, 11 to 14 minutes (over medium heat on preheated gas grill, 11 to 15 minutes) for medium rare (145°F) to medium (160°F) doneness, turning occasionally.

Step 3

To prepare peppercorn sauce, add half of butter to small sauce pan and heat over medium heat until hot. Add shallots; cook and stir until tender, 1 to 2 minutes. Add brandy; cook 1 to 2 minutes or until alcohol burns off. Add wine; cook until liquid is reduced by half.

Step 4

Add demi-glace, mustard, Worcestershire, whole peppercorns, black pepper and heavy cream.  Cook for 1 to 2 minutes or until sauce thickens, stirring occasionally. Finish by swirling in remaining 2 tablespoons butter. Season with salt to taste and remaining black pepper.