2 medium onions, thinly sliced
2 garlic cloves, minced
1 boneless beef chuck roast (3-1/2 to 4 pounds), quartered
1 cup brewed coffee
1/4 cup soy sauce
1/4 cup cornstarch
6 tablespoons cold water
Place half of the onions in a 5-qt. slow cooker. Top with garlic and half of the beef. Top with remaining onion and beef. Combine coffee and soy sauce; pour over beef. Cover and cook on low for 9-10 hours or until meat is tender.
Combine cornstarch and water until smooth; stir into cooking juices. Cover and cook on high for 30 minutes or until gravy is thickened.