Place the 3 cups of white chocolate chips, the 14 oz can of sweetened condensed milk, and the 4 tablespoons of butter into a microwave-safe bowl. Heat for 90 seconds.
Step 2: Finish Melting the Chocolate
Stir well, then microwave for an additional 15 seconds. Repeat once more if needed. A few unmelted bits are fine—continue stirring until the mixture becomes mostly smooth.
Step 3: Add Flavor and Pecans
Mix in the 1/2 teaspoon vanilla extract and the 1 cup chopped pecans. Spread the mixture onto a parchment-lined tray.
Step 4: Add the Caramel Swirl
Smooth the fudge to a thickness of about one inch. Drizzle the 1/2 cup caramel sauce over the top and gently swirl it in with a knife or spatula.
Step 5: Chill and Slice
Refrigerate until completely set. Cut into 1-inch squares and keep stored in an airtight container in the refrigerator for up to a week.
Enjoy every creamy, caramel-swirled bite!
