Line an 8 x 8 casserole dish with foil. Spray with nonstick spray.

In a large microwave safe bowl place the white chocolate chips.

Microwave on high for one minute and stir.

Add the vanilla frosting to the melted chips.

Microwave for 30 seconds and stir. Microwave at 15 second intervals until you achieve melted and smooth mixture.

Measure out ¾ cup of the mixture into two different bowls and leave the remaining mixture in the original bowl. The original bowl will stay white.

Tint each ¾ cup bowl full of fudge with red coloring and green coloring to desired depth of color.

Drop big tablespoons of each color into the foiled pan in random patterns. Then take a table knife and run it through the fudge to create a marbled design.

Refrigerate uncovered until set at least an hour.

Remove the fudge from the pan and peel the foil back. Cut into squares to serve!