Preheat the oven to 375 degrees F (190 degrees C).

Roll out crescent dough triangles onto a baking sheet.

Place 1 tablespoon blueberries on widest end of each triangle; top each group blueberries with 1/2 teaspoon confectioners’ sugar. Roll up crescent rolls around blueberries, starting with the wide ends. Pinch both sides to completely seal.

Bake in the preheated oven until golden, about 12 minutes. Cool on a wire rack for 5 minutes.

Dust turnovers with remaining confectioners’ sugar. Drizzle with vanilla frosting.