Skip to the Knob Sandwich recipe One-sandwich skillet recipe · About 11 minutes Knob Sandwich Recipe Make a Knob Sandwich with roast beef, cheddar, mango chutney and salt-and-vinegar kettle chips. This skillet recipe makes one sandwich in 11 minutes. This version layers roast beef, cheddar, mango chutney, mayonnaise and salt-and-vinegar kettle chips between sturdy bread,…