01 - Preheat oven to 350°F. Prepare and bake the vanilla cake according to package or recipe instructions. Allow to cool completely before proceeding.
02 - Crumble the cooled cake into a large mixing bowl, breaking it down into fine, uniform crumbs using your hands or a fork.
03 - In a separate bowl, beat together softened cream cheese, butter, powdered sugar, and vanilla extract until smooth and creamy, approximately 2-3 minutes.
04 - Add the prepared frosting to the cake crumbs and mix thoroughly until fully combined. The mixture should hold together when pressed.
05 - Scoop approximately 1 tablespoon of mixture and roll into balls, creating 24 uniform spheres. Arrange on a parchment-lined baking sheet and freeze for 20 minutes to firm.
06 - Melt white chocolate or candy melts according to package directions. Dip each chilled cake ball into the coating, ensuring complete coverage, then return to the lined tray.
07 - While the white coating remains soft, pipe or place a small circular amount of blue or green candy melt onto the center of each ball to form the iris.
08 - Once the iris has partially set, add a small dot of dark chocolate or black candy melt in the center of each iris to create the pupil.
09 - Using red gel food coloring or decorating gel, draw spidery veins radiating from the iris toward the outer edge for a realistic eyeball effect.
10 - Allow all decorations to set completely, approximately 15-20 minutes at room temperature or 10 minutes in the refrigerator. Serve chilled for best texture.