Ingredients:
- 3 cups (510g) semi-sweet chocolate chips
- 14 oz (397g) sweetened condensed milk
- 1/4 cup (56g) unsalted butter, cut into small cubes
- 1 tsp (5ml) pure vanilla extract
- 1/4 tsp (1.5g) fine sea salt
Instructions:
- Line an 8x8 inch square baking pan with parchment paper, leaving an overhang on the sides for easy removal.
- In a large microwave-safe glass bowl, combine the semi-sweet chocolate chips, sweetened condensed milk, and cubed unsalted butter.
- Microwave the mixture on high for 1 minute, then stir vigorously. If necessary, continue heating in 30-second bursts until the mixture is glossy and nearly smooth.
- Remove the bowl from the heat and immediately fold in the vanilla extract and fine sea salt until fully emulsified.
- If using optional mix-ins like walnuts or crushed candy canes, fold them into the mixture now before it begins to set.
- Pour the fudge mixture into the prepared pan and smooth the surface with an offset spatula.
- Allow the fudge to rest at room temperature for 30 minutes, then transfer to the refrigerator for at least 2 hours until firm.
- Use the parchment paper sling to lift the fudge from the pan. Slice into 1-inch squares using a warm, sharp knife.