Mix peanut butter, powdered sugar, and softened butter in a large bowl until thoroughly combined.
Stir in gingersnaps.
Roll mixture into balls and set on wax paper. Chill 30 minutes.
Melt white chocolate over low heat. Use a fork to dip peanut butter balls into chocolate. Immediately sprinkle with gingersnap crumbs.
Cool until hardened. Store at room temperature.