Directions
1. Preheat your grill to medium. Season the Top Sirloins to taste on both sides.
2. Grill Top Sirloins to the desired doneness.
3. Bring water to a boil in a medium saucepan. Add the packet of as jus mix and stir well with a whisk.
4. Add the brandy. Boil for about 10 minutes.
5. Meanwhile, in a small saucepan, mix the margarine and flour to make a roux. Cook the roux for 5 minutes to remove the raw flour flavor.
6. Add the finished roux to the au jus mixture and mix well with a wire whisk. The desired result is a smooth gravy-like consistency.
Stir in the heavy cream, and salt and pepper to taste. Place the Top Sirloins on a serving plate and drizzle the au jus sauce over them evenly.