Preheat oven to 300°F (150°C). Season beef roast with salt and pepper. Sear in a hot skillet until golden brown.

Add chopped onion to the skillet and caramelize for about 5 minutes, then stir in minced garlic for an additional minute.

Pour in beef broth and Worcestershire sauce, mixing well. Transfer the beef to a slow cooker, cover, and cook on low for about three hours until fork-tender.

Prepare biscuits according to package instructions or roll out homemade dough, cut into rounds, and bake until golden.

Slice open the biscuits, fill with shredded beef and caramelized onions, drizzle with broth, and serve with extra au jus.