In a large bowl of a stand mixer, or hand held mixer, mix together the butter, cake mix, sugar, flour and vanilla.
Add sprinkles and mix until sprinkles are combined well.
Using a tablespoon or tablespoon sized ice cream scoop, scoop dough and roll into balls.
Place on a lined baking sheet. Continue until dough is gone.
Place baking sheet with dough balls in freezer for 10 minutes.
When 10 minutes is up, keep dough balls in freezer while you melt the white chocolate.
Take dough balls out of freezer, and place dough balls on a wire rack. Put baking sheet under neath wire rack.
Take melted chocolate and drizzle over each dough ball.
Immediately sprinkle sprinkles on top of white chocolate.
Let cool and set in fridge for 30 minutes before enjoying.
Store truffles in fridge for up to 7-10 days!
Enjoy!
*Please see note below for heat-treating your raw flour before adding to recipe if you are not comfortable with eating raw flour.