Heat oven to 425 degrees Fahrenheit and grease a cookie sheet. Mix flour, 1/3 cup sugar, baking powder and salt. Cut in butter until you get fine crumbs; a food processor works best for achieving this consistency. Place mixture in large bowl, and add cranberries and raisins.
Beat milk and egg with a fork, and add milk and egg mixture to flour mixture; stir with fork until moistened.
Drop 12 heaping spoonfuls, 2 inches (5.08 centimeters) apart onto prepared baking sheet. Sprinkle with the 1 tablespoon sugar.
Bake 13 minutes or until golden. Cool on rack.