Preheat oven to 400°. Heat oil in a large, heavy-bottom ovenproof skillet over medium-high heat. Sprinkle beef with kosher salt and pepper; place in skillet, and cook, turning occasionally, 5 minutes or until well-browned on all sides.
Transfer skillet to oven, and bake 20 to 25 minutes or until meat thermometer inserted in thickest portion registers 145° (medium-rare) or to desired degree of doneness. Remove from skillet; let stand 10 minutes before slicing.
Cut beef into 24 thin slices. Place on baguette slices, and top each with 1 tablespoon Garlic-and-Merlot Jam. Sprinkle with chives.