Preparation Combine chicken and beef stocks in heavy small saucepan. Boil until liquid is reduced to 1 cup, about 15 minutes. Add Port and boil until liquid is reduced to 3/4 cup, about 15 minutes. Whisk in cranberry sauce and simmer until sauce thickens slightly, about 4 minutes. Whisk in 1 tablespoon butter. Season sauce with salt and pepper. Set aside. Sprinkle venison with salt and pepper. Melt remaining 2 tablespoons butter in large nonstick skillet over high heat. Working in batches, add venison to skillet and cook to desired doneness, about 2 minutes per side for medium-rare. Divide sauce among 4 plates. Place 2 venison medallions atop sauce on each plate.
Preparation Combine chicken and beef stocks in heavy small saucepan. Boil until liquid is reduced to 1 cup, about 15 minutes. Add Port and boil until liquid is reduced to 3/4 cup, about 15 minutes. Whisk in cranberry sauce and simmer until sauce thickens slightly, about 4 minutes. Whisk in 1 tablespoon butter. Season sauce with salt and pepper. Set aside. Sprinkle venison with salt and pepper. Melt remaining 2 tablespoons butter in large nonstick skillet over high heat. Working in batches, add venison to skillet and cook to desired doneness, about 2 minutes per side for medium-rare. Divide sauce among 4 plates. Place 2 venison medallions atop sauce on each plate.