COFFEE RUB SEASONING MIX:
1.5 Tbsp ground coffee
1/2 Tbsp salt
1/2 Tbsp paprika
1/2 Tbsp brown sugar
1/2 Tbsp pepper
1/2 Tbsp onion powder
1/2 Tbsp garlic powder
1/4 Tbsp coriander

DR PEPPER BBQ SAUCE:
2 Tbsp butter
1/2 yellow onion diced
3 cloves garlic roughly minced

1/2 cup ketchup
1 1/2 Tbsp tomato paste
6 oz Dr Pepper
1/4 cup apple cider vinegar
2 1/2 Tbsp Worcestershire sauce
1/4 cup brown sugar packed
1 tsp ancho chile powder
1/2 tsp salt
1/4 tsp pepper
3 Tbsp brewed coffee

BURGERS:
2 lbs Angus ground beef 85/15
2 Tbsp Dr Pepper BBQ sauce
salt and pepper
Pretzel buns
Arugula lettuce
8 slices peppered bacon
2 Tbsp butter

Thanks to The Chunk Chef who originally made this burger. The Dr. Pepper BBQ sauce is what makes this burger different. Now, don't think this is a Dr. Pepper flavored BBQ sauce because it's not. The Dr. Pepper simply adds that extra flavor that makes this BBQ sauce delicious. The coffee rub and the BBQ sauce can be made ahead of time. Enjoy!