Rub sugar and orange zest together.
Cream together the butter, orange sugar and vanilla extract.
Add in flour and cranberries and beat them together.
Form a dough and roll out into a log, then wrap it in plastic wrap and refrigerate for at least 4 hours (preferably overnight)
Remove cookies from fridge, cut them ½ inch thick and place then on parchment paper.
Preheat the oven to 170°C (335°F), then bake for 12-15 mins or until golden around the edges
Mix ingredients together for the glaze.
Dip cookies into glaze.
