Filet Mignon with Blackberries

I made this in a cooking class at ISU this week. It is some of the best steak I have ever had!

4-6 filet mignon steaks
salt and black pepper
2 Tbls olive oil
1/4 cup finely chopped shallots
1/2 cup dry red wine
1 cup beef broth
3 Tbls blackberry preserves
2 Tbls unsalted butter
fresh blackberries for garnish

1. Pat the steaks dry with a paper towel and season generously with salt and pepper. In a heavy skillet, heat the oil over medium-high heat until almost smoking. Sear the steaks in the hot oil for 3 minutes per side for medium rare. Transfer steaks to a serving plate, tent with foil and let rest.
2. Using the same skillet, saute the shallots for 1 minute. Add the red wine, scraping up any browned bits on the bottom of the pan. Let wine boil until reduced by half. Add broth and blackberry preserves; return to boil and reduce by half. The sauce should coat the back of a spoon. Whisk in the butter. Season with additional salt and pepper to taste.
3. To serve, drizzle the sauce over the steaks and scatter a few blackberries on the plate.