01 -
Assemble all ingredients and ensure the butter is softened. Prepare a microwave-safe mixing bowl and a baking tin lined with parchment paper or use a silicone mold.
02 -
In the large microwave-safe bowl, combine sweetened condensed milk, granulated sugar, and softened butter. Add cocoa powder and mix thoroughly until smooth, ensuring no lumps remain.
03 -
Microwave the mixture on high power for 2 minutes. Carefully remove the bowl—use oven mitts if necessary—stir well, and return to the microwave for another 2 minutes. Mixture should be fully combined and glossy.
04 -
If using nuts, fold in chopped nuts until evenly distributed throughout the fudge mixture.
05 -
Pour the hot mixture into the prepared tin or mold, smoothing the top. Refrigerate for at least 1 hour, or until fully set. Slice into portions once firm.