In fondue pot or saucepan over low heat, heat half and half, Worcestershire sauce, mustard, and garlic, stirring, until hot but not boiling. Discard garlic.
Gradually stir in the shredded cheese, until smooth
Add salt to taste
Either put the fondue pot over low sterno flame if prepared in saucepan or pour cheese mixture from saucepan into fondue pot and set over low sterno flame.
Serve with pieces of french bread, potatoes, ham, apples, broccoli, etc..