01 -
Sift flour, powdered sugar, and salt into a large bowl. Cut cold butter into 1/2 inch cubes and incorporate into flour mixture using a pastry cutter until mixture resembles coarse cornmeal. Add egg yolks and vanilla, mixing just until combined.
02 -
Shape dough into a ball, cut in half, and wrap each portion in plastic wrap. Chill for at least 1 hour.
03 -
Roll each dough portion to 1/4 inch thickness, dividing again if needed. Carefully line tart tins with dough, pressing gently into sides. Trim excess and dock bottoms with fork. Chill shaped crusts for 15 minutes.
04 -
Preheat oven to 375°F. Line chilled crusts with foil and pie weights. Bake 10 minutes, remove weights and foil, then bake additional 5 minutes until golden. Cool completely.
05 -
Mash blueberries in a small pot. Add cream and heat on low, continuing to mash berries until mixture turns purple, about 10 minutes. Remove from heat when bubbles form.
06 -
Strain hot blueberry mixture over white chocolate chips, whisking until smooth. Let cool to room temperature.
07 -
Fill cooled tart shells with room temperature ganache. Freeze for at least 3 hours or overnight until set.