Preheat oven to 325 degrees and grease a 9-inch round cake pan. Bake the boxed white cake according to package directions. Whisk together 3 large eggs, ⅓ cup coconut oil, filtered water and vanilla bean paste together. Fold in boxed white cake and mix until thoroughly combined.
Transfer cake batter to prepared pan and bake for 30-33 minutes until cake just springs back.
While cake is cooling, melt the ⅓ cup of white chocolate chips in a microwave safe bowl or over a double boiler. To a large bowl, add the warm cake and tear in pieces, stir in the orange juice and zest, orange liqueur, chopped fruits and nuts and melted chocolate.
Break up cake with hands and mix until well combined and cake is able to form into balls.
Form into 1-inch balls, pressing firmly, or alternately, you can press into 1-inch cubes in a silicone tray. Freeze while you are melting the bag of white chocolate chips.
To a medium bowl, add the bag of white chocolate chips and teaspoon of coconut oil. Microwave in 30 second intervals, stirring each time until melted or melt over a double boiler.
Working quickly in batches, dunk each truffle into the white chocolate, or simply drizzle it atop. Sprinkle chopped fruits and nuts atop quickly, as white chocolate dries instantly. Serve chilled and enjoy!