Bake cake according to package directions and allow to cool completely.
In a kitchen aide with paddle attachment, combine the cake and cream cheese until a soft dough forms.
Place the mixture in the freezer for at least an hour to chill.
Use a cookie scoop to form 2 Tbsp sized balls and roll into balls.
Place the balls on a parchment paper lined baking sheet and put them into the freezer again for about an hour. This allows the balls to become firm and set up, making them much easier to dip.
In a microwave safe bowl combine chocolate candy melts and coconut oil. Heat in the microwave in 30 second intervals, stirring between until completely melted.
Dip each of the truffles into the melted chocolate, coating completely. Using a fork for this helps the chocolate to drip off the ball. Place on a parchment lined cookie sheet.
Heat the white candy melts in the microwave using the same method above.
Drizzle the white chocolate over the truffles and immediately top with candy heart sprinkles.
Place them in the fridge or freezer to set up and enjoy.