In the work bowl of a food processor, place flour and salt; pulse until combined.
Cut frozen butter into cubes; add to flour mixture, and pulse until mixture is crumbly. With processor running, gradually add ½ cup (120 grams) ice water through food chute, processing just until mixture forms a ball.
On a lightly floured surface, turn out dough. Shape into a disk, and wrap in plastic wrap. Refrigerate for at least 30 minutes. Dough can be made up to 3 days in advance and frozen for up to 3 months.
Notes
*We used Kerrygold.
Recipe by Bake from Scratch at https://staging.bakefromscratch.com/strawberry-mascarpone-strudels/