Combine all of the filling ingredients together in a food processor. Pulse until well-blended. Transfer the mixture to a small bowl, and freeze for 30-60 minutes, or until the mixture is fairly hardened.

Use a small cookie scoop of spoon to shape the filling mixture into a small ball, about the size of 1 tablespoon. Roll it in your hands to make it nice and round, and then set it on a plate or baking sheet lined with parchment or wax paper. Repeat with the remaining filling mixture. Place the plate of filling balls back in the freezer, and freeze for at least 2 hours, or until solid.

Once the filling balls are frozen, stir together the chopped white chocolate and the shortening (or vegetable oil) and use a microwave or double boiler to melt the mixture until smooth, stirring occasionally.

Use a small fork to dunk a filling ball into the melted chocolate until it is completely covered, then transfer the ball to a new baking sheet lined with parchment or wax paper. Remove the ball from the fork with a spoon, and then use the spoon to swoop the chocolate over the top if a spot of filling is showing. Sprinkle the top with a pinch of the remaining gingersnap crumbs. Repeat with remaining filling balls until all are coated in chocolate.

Serve immediately, or refrigerate for up to 1 week.