Lamb Stew (Irish Stew)

Ingredients

• pounds lamb shoulder
• salt and black pepper
• tablespoons vegetable oil
• large onion
• beef broth
• tablespoons butter
• tablespoons all-purpose flour
• ⅕ ounces Guinness beer
• bay leaves
• carrots
• large potatoes
• sprigs fresh thyme
• chopped fresh parsley