Melt Almond Bark according to package directions, adding vegetable shortening to thin it out.
Pour the cereal into a large bowl and drizzle the melted Almond Bark over the cereal.
Mix gently with a large spoon or spatula. Dump the cake mix and powdered sugar onto the cereal and mix gently with large spoon until all the cereal is evenly coated.
Notes
You could most definitely use white chocolate in place of Almond Bark.We recommend the almond bar, because it calls for quite a bit of white chocolate, and the flavor has a little more almond taste to it, but white chocolate would work just as well.