Corned Beef with grain

1 (3 pound) corned beef brisket with spice packet 1 cup brown sugar 4 (12 fluid ounce) cans or bottles Irish stout beer (such as Guinness®), or more if[...]

2 1/4 lbs beef brisket 6 peppercorns 2 teaspoons minced garlic 1 large onion , peeled and left whole 2 bay leaves 1 pinch kosher salt 1 head cabbage , cored[...]

3 -4 lbs corned beef brisket (rinsed, with juices and seasoning packet included) 1 onion , sliced 3 medium carrots , in chunks 3 medium potatoes , peeled and[...]