Crumble the cake either using your fingers or in a stand mixer with a paddle attachment. Both work just as well, but for me the stand mixer is a quicker option whilst fingers are definitely more fun!
Keep a couple of tablespoons of cake crumbs aside (for the decoration) BEFORE you start combining ingredients to make the red velvet chocolate truffles. Forgetting this step will leave you with delicious white chocolate covered red velvet truffles without any decoration on top!
The cream cheese quantity is very much a guide in this recipe. This is how much I needed to make the cake balls hold together, but you may find you need a little more or less, depending on how moist the cake crumbs are. You are looking for the mixture to squish and hold together easily, without crumbling apart.
Always chill the cake balls before dipping in the melted chocolate. This step helps the balls hold together better so they are less likely to crumble or fall apart when dipped.
Use a fork to get the truffle out of the melted chocolate. Allow the chocolate to drip off the truffle, in between the prongs, then clean the bottom of the fork on the side of the bowl. Carefully allow the chocolate covered cake ball to slide off the fork onto the parchment paper to set.
Sprinkle the dipped truffles with the reserved cake crumbs as soon as they are dipped (while the chocolate is still wet) to ensure the crumbs stick to the chocolate.
Leave the finished truffles to set on the paper for at least 30 minutes before transferring to a plate or mini cases to serve.