Rub it down with salt, garlic powder, onion powder, and use this
Claude's Bbq Brisket Marinade Sauce-16 Oz-2 Pack https://www.amazon.com/dp/B012DT2X46/ref=cm_sw_r_cp_api_glc_fabc_AoN3FbZ23FTZ9
Let it marinade in over night. Then throw it in a crockpot for 9-10 hours on low.