Preheat oven to 375 degrees F (190 degrees C). Grease cookie sheets.
In a large bowl, cream together the butter, brown sugar, and white sugar until smooth. Beat in the egg and brandy. Combine the flour and baking soda; stir into the sugar mixture. Mix in the white chocolate chips and cranberries. Drop by heaping spoonfuls onto prepared cookie sheets.
Bake for 8 to 10 minutes in the preheated oven. For best results, take them out while they are still doughy. Allow cookies to cool for 1 minute on the cookie sheets before transferring to wire racks to cool completely.
One reviewer suggested that she scoops them out and freezes the cookie dough and just takes out what she wants to bake.