Preheat oven to 350°F. Line two baking sheets with parchment paper.
In a large mixing bowl, beat the softened butter and powdered sugar together until light and creamy, about 2–3 minutes.
Mix in the vanilla extract and salt until fully incorporated.
Add the flour and powdered freeze-dried raspberries. Mix on low speed just until combined (do not overmix).
Stir in the finely chopped pecans until evenly distributed.
Scoop 1 tablespoon portions of dough. Gently roll into balls and place on the prepared baking sheets, spacing slightly apart.
Bake for 12–15 minutes, until the bottoms are just lightly golden. The tops should remain pale.
While the cookies are still warm, gently roll them in the powdered sugar raspberry mixture. Place on a wire rack to cool completely.
Once cooled, roll the cookies in the powdered sugar mixture again for a thick, snowy finish.