Put the chopped chocolate and butter in a medium, heat-proof bowl. Set aside.
Heat the heavy cream in the microwave (or in a pan on the stovetop) just until it comes to a boil. Pour the hot cream over the chocolate in the bowl and let it sit for 3-5 minutes.
Stir the chocolate and cream until smooth.
Chill in the refrigerator for 2 hours.
Use a small cookie dough scoop to make balls of chocolate. Place on a parchment-lined baking sheet and freeze for 20-30 minutes.
Melt the chocolate melting wafers in the microwave, at 50% power, for 30 seconds. Stir and then continue melting and stirring in 15-second intervals until smooth.
Dip the chocolate balls in the melted chocolate and place them on parchment paper. Immediately top with sprinkles, if desired, before the chocolate coating hardens.
Store in an airtight container in the refrigerator.
Video
Notes
Storage
Store them in an airtight container in the fridge for 1-2 weeks or in the freezer for up to 3 months.