Line the baking pan with parchment paper, leaving some overhang for easy removal.

In a microwave-safe bowl, combine the white chocolate chips and sweetened condensed milk. Heat in the microwave in 30-second intervals, stirring in between, until completely melted and smooth.

Stir in the peppermint extract until well mixed.

Gradually add in the green food coloring, mixing until you achieve your desired shade of green.

Pour the fudge mixture into the prepared baking pan, spreading it evenly with a spatula.

Sprinkle the crushed peppermint candies over the top of the fudge.

Refrigerate the fudge for at least 2 hours, or until fully set.

Once set, lift the fudge out of the pan using the parchment paper and cut it into squares.