In a standing mixer, combine flour, salt and confectionery powder. Mix to combine.
Add butter and vanilla.
Continue mixing at low speed with paddle attachment.
If mixture is holding together, stuck to the paddle and not crumbly, do not add any water. If it is crumble, add a teaspoon of water and mix again. Add additional teaspoon if necessary.
Add in cranberries and orange zest, mix well.
Place dough onto sheet of waxed paper, roll into log shape that is about 12 inches long and about 3 inches in diameter.
Roll wax paper around log and refrigerate at least 40 minutes.
Preheat oven to 375 degrees F.
Remove dough from fridge.
Slice into disks that are roughly 1/3 inch thick.
Place on baking sheet lined with parchment paper, space about an inch or two apart.
Wrap unused portion of dough and return to fridge.
Place baking sheet in oven and bake until slightly golden around the edges, 13 to 15 minutes.
