Step 1

Line an 8 inch square pan with parchment paper. Set aside.

Step 2

In a large microwave safe bowl, melt the white chocolate chips, condensed milk and butter in the microwave for 30 second intervals, mixing until smooth.

Step 3

Mix in the vanilla extract.

Step 4

Pour the fudge mixture into the prepared pan. Refrigerate for at least 2 hours.

Step 5

When hardened, cut into squares. Enjoy!