The sweet and tart flavors of the cranberries shine through in this tender brisket recipe. The reason you cook it twice is to make the slicing easier. If you cooked it all in one day, the meat would fall apart and end up stringy. This would be more like a Pot Roast than the Sliced Brisket that I wanted to serve. Slicing it cold ended up to real easy, and the meat ended up super tender, and moist. Note: Butt Kickin' Blacken contains neither salt, nor sugar, and is available at http://www.capnrons.com/index.html?id=rz. If you choose to use a different blackening seasoning, you might have to adjust accordingly.