Preheat oven to 425 degrees.  Sift flour, mustard, and salt into a bowl.  Stir in cheese, ½ teaspoon paprika, cayenne, and caraway seed.  Cut in the butter until mixture resembles coarse meal.  Add Worcestershire sauce and water; blend with a fork until dough holds together, add more water if necessary.  Form into a ball.

On a lightly floured surface, roll out dough to 1/8-inch thickness and cut out using a 1 ½-inch serrated edge biscuit cutter.  Place on an ungreased baking sheet.  Sprinkle with additional paprika.  Bake wafers for 5 to 7 minutes or until lightly browned.   Yield:  4 Dozen