Stout Slow Cooker Corned Beef and Veggies

1 ½ (12 fluid ounce) cans or bottles Irish stout beer (such as Guinness®), divided

1 (4 pound) corned beef brisket

1 ½ cups brown sugar

3 sweet potatoes, cut into chunks

1 head cabbage, cored and coarsely chopped

2 large sweet onions, chopped

6 large carrots, chopped

3 red potatoes, cut into chunks

Pour 1 bottle Irish stout beer into a slow cooker.

Rinse corned beef brisket and pat dry. Rub with brown sugar, including the bottom, and gently place brisket into the slow cooker with the stout beer.

Arrange sweet potatoes, cabbage, onion, carrots, and red potatoes on and around the brisket in the slow cooker.

Pour remaining 1/2 bottle Irish stout beer on and around brisket and vegetables to moisten the brown sugar. Cover the cooker and cook on Low until corned beef is tender, 6 to 8 hours. Allow brisket to stand 5 minutes before slicing.