01 - Whisk together flour, baking powder, and salt in a medium bowl. Set aside.
02 - Beat butter and sugar in a large mixing bowl until light and fluffy, approximately 2-3 minutes.
03 - Mix in egg, vanilla extract, and orange zest until fully combined.
04 - Gradually add flour mixture, mixing just until smooth dough forms. Divide in half, flatten into discs, wrap in plastic, and refrigerate for 1 hour.
05 - Process dried cranberries, sugar, orange zest, orange juice, and water in a food processor until cranberries are finely chopped and mixture is spreadable.
06 - Roll one dough portion between parchment sheets into a 9x12-inch rectangle. Spread half the cranberry filling evenly, leaving a 1/2-inch border on one long edge.
07 - Tightly roll dough starting from opposite long edge, using parchment for support. Pinch seam to seal. Repeat with remaining dough and filling.
08 - Wrap logs in plastic wrap and refrigerate for at least 1 hour or freeze for easier slicing.
09 - Preheat oven to 350°F and line baking sheets with parchment paper.
10 - Cut logs into 1/4-inch rounds and place cookies 2 inches apart on prepared baking sheets.
11 - Bake for 13-15 minutes until edges are lightly golden. Cool on baking sheets for 5 minutes, then transfer to wire rack to cool completely.