Prepare a baking tray with parchment or silicone liners.
In the bowl of a stand mixer fitted with the paddle attachment or in a medium bowl with an electric hand mixer, cream together the butter and cookie butter until soft and fluffy.
Gradually add the icing sugar, until it's well combined. You'll have a firm, sticky mixture.
Using a tablespoon-sized cookie scoop, portion out 18 truffles and place them on the prepared baking tray.
Freeze the tray for 3 hours.
Meanwhile, melt the chocolate in a ceramic or metal bowl over a pan of simmering water (do not let the bottom of the pan touch the water). Allow to cool slightly before you work with the truffles.
Remove the tray of truffles from the freezer and, working quickly, dip each truffle in the melted chocolate. Allow the excess chocolate to drip off (I place the dipped truffle on a fork and let the excess drip away) before placing truffle bottom side down again on the tray.
Sprinkle with decorative sprinkles if desired.
Store in fridge and remove 15 minutes before you will serve them.
Recipe by eat. live. travel. write. at https://www.eatlivetravelwrite.com/2015/12/truffles-three-ways/