Place unwrapped Christmas Tree Cakes into the bowl of a stand mixer. Use the paddle attachment to blend the cakes until a thick dough forms.

Use a small cookie scoop to portion out the dough into small balls using about two teaspoons of dough.

Heat white candy melts in a microwave safe bowl on HIGH power for 30 seconds. Stir well. Continue heating in 30-second increments until the candy melts are fully melted and smooth.

Dip each cake ball into the melted white candy melts. Place on a sheet of wax paper. Sprinkle green sanding sugar lightly over the candy melts before they harden.

When truffles are dry, microwave red candy melts in a small bowl on HIGH power for 30 seconds. Sir well then continue heating in 15-second increments until fully melted. Spoon red candy melts into a zip-top plastic baggie then snip off the tip. Use the bag to pipe 3-4 red lines over the top of each truffle.