Combine cheese, milk, beer, Worcestershire sauce and garlic in a saucepan and cook over medium heat, stirring occasionally until cheese melts.

Combine flour and water and add to cheese mixture.

Cook over medium heat, stirring constantly for 10 minutes or until soup is thick.

Fry and dice bacon.

If using pretzel buns as your serving dishes use a knife to carve each roll into a bowl. Spoon into bowls and sprinkle with chives and diced bacon pieces.