3. Add corned beef brisket, fat cap side up, to a large Dutch oven. Pour in wine. Sprinkle contents of spice packet on top of corned beef. Cover and place in a 325 degree oven to braise for 3 hours. After a couple of hours, check on the corned beef to make sure there is enough liquid in the pot. If needed, add 1/2 cup more wine, chicken broth or water.