My mother has been making second-cut brisket with loads of onions for years. I firmly believe that with this and salad, I am good to go for a week. The most important components of this recipe are onions, salt, and a well-marbled brisket! The rest is just to add some additional layers of flavor to an already good thing. So if you have no patience for all the dehydrated spices below, you can really omit them.