Can I use a slow cooker instead of a pot?
Yes. Brown the brisket first if possible, then add all ingredients to a slow cooker on low for 6–8 hours until the meat is fork-tender.
What's the difference between corned beef and brisket?
Corned beef is cured brisket, pre-brined with salt and spices. You're buying it already cured; some packets include pickling spice, others don't.
How do I know when the corned beef is done?
It should shred easily with a fork and register 190–205°F internally. The meat will be very tender, not tough or chewy.
Can I make this ahead?
Yes. Cook fully, cool, and refrigerate for up to 4 days. Reheat gently on the stovetop with a splash of broth to restore moisture.
Do I need Guinness beer?
No. Substitute beef broth, red wine, or omit entirely. The beer adds depth but isn't essential.