Line an 8-inch square baking dish with aluminum foil.
In a microwave safe bowl, stir together the white chocolate and condensed milk. Place in microwave for 90 seconds and let sit for a minute.
Stir well to combine the melted chocolate and condensed milk.
Add the cotton candy extract.
Spoon out about 3 tablespoon of fudge or so into a separate bowl.
Spoon an additional 3 tablespoon of fudge or so into another separate bowl.
Add the blue food coloring to one bowl and combine.
Add the pink food coloring to one bowl and combine.
Spread the white fudge into the prepared pan.
Drop spoonful’s of both colors of fudge onto the white fudge.
Run a knife through the fudge to swirl the colors together to get the desired effect you are looking for.
Refrigerate for at least 3 hours to firm.
Cut into pieces and serve.