BBQ Burgers with BBQ Caramelized Onions

I like to experiment with burgers. The sauce in the meat made it a bit of a challenge to grill but it was worth the effort.

BBQ Cheese Burger
adapted from Bon Appetit June 2000

2 lbs ground beef
5 Tbsp BBQ sauce (I used Sweet Baby Rays)
2/3 tsp garlic powder
2/3 tsp kosher salt
2/3 tsp freshly ground black pepper

Mix together and form into 6 patties. Grill to desired doneness.

BBQ Caramelized Onions
adapted from Bon Appetit June 2000

1 1/2 tsp olive oil
1 large onion, sliced
1/4 tsp kosher salt
1/8 tsp freshly ground black pepper
1 Tbsp + 1 tsp beef broth
1/4 cup BBQ sauce (I used Sweet Baby Rays)
1 3/4 tsp apple cider vinegar

Cook the onions with the salt and pepper in the olive oil until beginning to brown, stirring frequently to prevent them from burning. Add the broth, BBQ sauce and vinegar. Reduce the heat and simmer until the sauce thickens. Serve on top of the burgers