Bubblegum Cloud Fudge

Prepare the Tin: Line a 9×9-inch square baking tin with parchment paper.
Melt Chocolate Mixture: In a microwave-safe bowl, combine the white chocolate, sweetened condensed milk, and butter. Microwave in 40-second intervals, stirring each time until smooth.
Add Flavors and Colors: Mix in the bubble-gum flavoring and vanilla extract. Optionally, divide the mixture for a marbled effect using the food gels.
Combine with Marshmallows: Fold in the mini marshmallows evenly.
Pour and Chill: Pour into the prepared tin, smooth the top, and sprinkle with confetti rainbow sprinkles. Refrigerate for about 2 hours until firm.
Serve: Lift out using the parchment paper, cut into squares, and enjoy the burst of bubblegum flavor in each bite!