Start by generously seasoning your beef brisket with salt and black pepper on all sides. Let the brisket rest for about 15 minutes.

In your slow cooker, spread the thinly sliced onion and minced garlic evenly across the bottom.

Carefully place the seasoned beef brisket on top of the onion and garlic mixture.

In a medium bowl, whisk together the beef broth, barbecue sauce, Worcestershire sauce, brown sugar, smoked paprika, and black pepper until smooth.

Pour the prepared sauce evenly over the brisket, ensuring it is well coated. Cover and cook on low for 8-10 hours, or high for 4-5 hours.

Once done, remove the brisket and let it rest for about 10 minutes before slicing against the grain.