Heat butter in saute pan and caramelize the pears. Add the onions, cherries and chestnuts, saute and finish with chopped chives. Heat butter in another saute pan and cook the mushrooms and season with salt and pepper. Keep warm.
Heat a large saute pan over high heat and add olive oil. Season the chops well and add to the pan. Cook 3 minutes on each side of the chop or until preferred doneness. Remove chops from pan and deglaze with 2 tablespoons sherry vinegar, 3 tablespoons port wine, and reduce for a minute. Add 2 tablespoons cherry juice and 1 cup demi-glace. Reduce until thick and then swirl in butter. Plate chops surrounded by the winter ragout and drizzled with sauce. Serve immediately.
Recipe courtesy of Alessandro Stratta, Renior's, Mirage, Las Vegas, NV