I make my brisket tender and good by seasoning it with salt, pepper sometimes even a sprinkle of onion salt or garlic then pour a can of dr. Pepper on it and cook on low. I don't even use my oven anymore i use my large electric slow cooker or my roaster on a low setting. It is so tender when cut if you do it after a couple of hours or else leave it longer and it just shreds. You can add a bit of bbq sauce toward the end of the cooking but i usually just let everyone put their bbq sauce o to their own liking. Oops i forgot to ell you that i cook it for about 3-4 hours depending on the size of the briskit and if i am going to cook it all day then i place it on a very low setting. Bon apetit.