Ingredients
Method
Step-by-Step
- Line an 8-inch square baking pan with parchment paper or aluminum foil, leaving enough overhang to lift out the chilled fudge. If the sugar-cookie mix contains flour, heat-treat it according to the package directions or heat it to 165°F/74°C, then cool it completely before using.
- Add the white chocolate chips and sweetened condensed milk to a microwave-safe bowl. Microwave on high for 60 seconds, stir thoroughly, and continue heating in 20- to 30-second intervals until smooth.
- Immediately stir the dry sugar-cookie mix, vanilla extract, and optional salt into the melted chocolate mixture. Mix until the fudge base is evenly combined and no dry pockets remain.
- Fold in 1/4 to 1/3 cup of sprinkles with just a few gentle strokes. Avoid excessive stirring because some sprinkle colors may bleed into the white fudge.
- Transfer the mixture to the prepared pan and spread it into an even layer. Scatter additional sprinkles over the top and press them very lightly into the surface.
- Refrigerate the pan for 2 to 3 hours, or until the fudge is fully firm. Use the parchment or foil overhang to lift it out, remove the lining, and cut it into small squares with a sharp knife.
Notes
Use short microwave intervals and stir often to prevent white chocolate from overheating or becoming grainy. For cleaner cuts, warm a large sharp knife briefly under hot water, dry it carefully, and repeat between cuts. Store the firm fudge covered in the refrigerator.
