It's a around 4 hours into the smoking process for this years Super Bowl brisket and I've just applied the first mopping of the jalapeno and peach barbeque sauce I finished up last night.
The sauce started with a base of beef stock, white wine, vinegar, honey, peaches, jalapeno peppers with most of the ribs and seeds removed, shallots, garlic, apricot preserves, sea salt, cracked pepper and chili powder. After brining the ingredients to a boil, I used an emersion blender to combine the mixture and then lowered the temperature to a slow rolling boil.
After reducing the liquid by a third, I reserved part of the sauce to use as a mop for the next days smoking, allowing the mixture to cool and the flavors combine in the fridge overnight. Then I continued to reduce the remaining liquid until it was a sweet and spicy sauce to use as a side for the game.
After the first few hours, its a good idea of mop a brisket every hour or so. The vinegar in the mop will help keep the brisket moist, and will also help tenderize the meat. Because of the sugar content of this mop, its a good idea to apply it in thin coats, allowing it to build a nice caramelized layer over the course of the day.