Blue/brie-rugala burgers

1. Mix meat, garlic, worchestershire sauce, and parsley together lightly with a fork. Form 4 patties.

2. Heat large skillet over medium low heat. Melt the butter and olive oil together. Add in the onions, season with salt & pepper, and cook over low heat for 20 minutes. Add in the splash of water, brown sugar, and mustard. Stir to combine, heat through, and then turn off heat.

3. Meanwhile, heat the outdoor grill or indoor grill pan. Cook the burgers over medium heat for about 8 - 10 minutes. The last minute put a thick slice of the brie cheese and a thick slice of the blue cheese on each of the burgers. (Unless you are M. In this case he won't even touch the blue cheese going on to my burger. Sigh.) Toast the buns at this point if you'd like.

4. Top the cheesy burgers with the caramelized onions and 'clean' arugula.