Place meat in a bowl or pan lined with saran wrap.
Inject Boston butt with the following:
1/2 cup White grape, peach mango juice
1/4 cup Apple juice
1/8 cup Apple cider vinegar
Few dashes of your favorite hot sauce
After pork is injected, massage with yellow mustard, then place a thick coat of your favorite rub and allow to marinated overnight for best results.
Place in your favorite smoker, crock pot or oven and cook low and slow 225 to 250 degrees, till bone can be pulled cleanly out.