Combine butter and sugar and mix together on medium speed until well blended.
Add flour about 1/2 at a time and mix until combined.
Add cranberries and salt, mix well.
Transfer about 1/2 of the dough onto plastic wrap and roll into a log.
Continue doing the same with the remaining dough.
Refrigerate for at least 1 hour or overnight.
Preheat oven to 350 degrees.
Cut dough into 1/4 inch rounds and place on baking sheet lined with parchment paper. Space the cookies enough. Bake for 10 minutes or until the cookies start to brown.