Barbecue Beef

Also from Gourmet, May 2007.  This one is super easy to make and very flavorful!   Take the 15  minutes to make this version of BBQ sauce, it will not disappoint.  The meaty cut of beef holds up very nicely to the zest of the sauce.  Definately a big hit in my house.

3 Tbsp. packed dark brown sugar
2 tsp. cumin
2 tsp. chili powder
1 1/2 tsp. salt
1 tsp. black pepper
1 tsp. dry mustard
1- 1 1/4# flatiron steak (1' thick)- also called boneless chuck top blade steak
1 medium onion, diced fine
1 Tbsp. vegetable oil
1/2 c. ketchup
2 Tbsp. worcestershire sauce
5 Tbsp. water

Stir together brown sugar, cumin, chili powder, salt, pepper, and mustard in a bowl.  Pat steak dry and rub 2 tbsp. of seasoning mix all over it.  Reserve remainder of seasoning mix for the sauce.  Let steak sit at room temperature while making sauce.
Preheat gas grill, get hot.  Meanwhile, cook onions in oil in a medium saucepan over moderately high heat until golden brown- 5 to 10 minutes.  Add ketchup, worcestershire and remainder of spice mix, stir.  Bring to a boil and then reduce heat, stir occaisonally, cook about 5 minutes.  Carefully transfer to a blender and add the water.  Blend until very smooth.  taste and adjust seasoning with salt and pepper if necessary.  Transfer to a bowl and reserve.
Once grill is heated, using a towel oil grill rack and the grill steak, covered 4-5 minutes per sidef or medium rare.  Brush steak all over with some of the sauce and grill 30 seconds per side.  Transfer to a cutting board and let rest for 5-10 minutes.  Cut steak into thin slices and serve with remaining sauce.  Enjoy!