½cupwhite chocolate chipsor more if you want it super chocolatey
Place all dry ingredients in a medium bowl and mix until combined.
Add butter and both sugars to a large mixing bowl and cream with an electric mixer until pale and fluffy. Add the egg and vanilla and mix until combined.
Add the dry ingredients to the wet ingredients and mix until a cookie dough forms. Fold in the cranberries and white chocolate. Chill until cold, about 30-60 minutes.
When ready to bake, preheat the oven to 350°F. Line a cookie sheet. Scoop balls of dough with a cookie scoop or tablespoon measure - I do a heaping tablespoon per cookie - and place on the prepared cookie sheet.
Bake for 10-14 minutes, or until flattened and lightly browned. Cool on the cookie sheet for 5 minutes, then transfer to a cooling rack.