01 - Whisk together all-purpose flour and fine sea salt in a medium bowl; set aside.
02 - Using an electric mixer on medium speed, beat unsalted butter and powdered sugar until light and fluffy, about 2 minutes.
03 - Beat in pure vanilla extract until fully incorporated.
04 - Gradually add the flour mixture to the butter mixture, mixing on low speed until just combined.
05 - Fold in chopped dried cranberries and pistachios gently with a spatula.
06 - Divide dough into two portions; shape each into a 1.5-inch diameter log, wrap tightly in plastic wrap, and refrigerate for at least 1 hour until firm.
07 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
08 - Unwrap chilled dough logs and slice into 1/4-inch thick rounds. Arrange cookies 1 inch apart on prepared baking sheets.
09 - Bake for 13 to 15 minutes until edges begin to turn golden brown.
10 - Allow cookies to cool on baking sheets for 5 minutes, then transfer to a wire rack to cool completely.