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.
20 oz. white chocolate chips or melting wafers, 14 oz can sweetened condensed milk
Stir well to combine the melted chocolate and condensed milk.
Add the cotton candy extract.
1 teaspoon 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.
Blue food coloring
Add the pink food coloring to one bowl and combine.
Pink food coloring
Spread the white fudge into the prepared pan.
Drop spoonfuls 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.