Stir in flour. You should be able to roll the dough into balls. If it is too wet and a little more flour, if it is to dry, add a little more milk.
Stir in sprinkles.
Roll into balls and chill for 1-2 hours.
Melt candy bark and dip truffles into it. Let dry on a plate lined with wax paper. Add sprinkles to the top of truffles while they are wet if you wish.