Step 1

Place roast fat side up in a slow cooker. Arrange onion slices over roast. Add beef broth, French onion soup, and beer.

Step 2

Cook on low for 5 hours. Remove roast from slow cooker and allow to rest for 15 minutes. Shred meat.

Step 3

In the meantime, preheat the broiler. Spread butter over the inside of the rolls. Broil until rolls are toasted, about 3-5 minutes.

Step 4

Pile sliced meat along the center of each roll. Top with sliced onions. Place a slice of Provolone over the top of each sandwich. Return to the oven and heat until the cheese is melted, about 1 minute.

Step 5

Season remaining juice with salt and pepper. Serve alongside the sandwich in individual bowls for dipping.