Step 1: Prepare Your Pan
Line an 8×8 inch square baking pan with parchment paper, leaving a 2-inch overhang on two opposite sides. This “parchment sling” is the secret to easily lifting the entire block of fudge out of the pan for clean, perfect cuts later. Lightly grease the parchment paper and the uncovered sides of the pan.

Step 2: Combine and Melt the Base Ingredients
You can use either a stovetop or a microwave for this step.

• Stovetop Method (Recommended): In a medium, heavy-bottomed saucepan, combine the white chocolate chips and the sweetened condensed milk. Place the saucepan over low heat. Stir constantly with a heatproof rubber spatula, scraping the bottom and sides of the pan, until the chocolate is completely melted and the mixture is smooth. This low-and-slow method prevents the chocolate from scorching.

• Microwave Method: In a large, microwave-safe bowl, combine the white chocolate chips and sweetened condensed milk. Microwave on medium power (50%) in 30-second intervals, stirring well with a rubber spatula after each interval. Continue until the chocolate is fully melted and the mixture is smooth. Be careful not to overheat, as white chocolate can seize and become grainy.

Step 3: Add the Gingerbread Flavors
Remove the pan from the heat (or the bowl from the microwave). Immediately add the molasses, ground ginger, cinnamon, nutmeg, cloves, vanilla extract, and salt. Stir vigorously until all the spices and molasses are completely incorporated and the fudge is a uniform color and has a thick, glossy consistency. Work quickly, as the fudge will begin to set.

Step 4: Pour and Spread the Fudge
Pour the fudge mixture into your prepared 8×8 inch pan. Use your spatula to quickly spread it into an even layer, pushing it into the corners.

Step 5: Add Toppings (Optional)
If you are using sprinkles or sanding sugar, sprinkle them evenly over the top of the fudge now, while it is still soft. Gently press them into the surface with your hand so they adhere. If you plan to add a chocolate drizzle, you will do this after the fudge has chilled completely.

Step 6: Chill Until Firm
Place the pan in the refrigerator and chill, uncovered, for at least 4 hours, or until the fudge is completely firm. For best results, let it chill overnight.

Step 7: Cut and Serve
Once the fudge is firm, use the parchment paper overhangs to lift the entire block out of the pan and onto a cutting board. If you are adding a white chocolate drizzle, do so now and let it set. Using a long, sharp knife, cut the fudge into small, 1-inch squares. For the cleanest cuts, run the knife under hot water and wipe it dry between each slice.