World's Best Oreo® Fudge

Line a 13x9-inch baking pan with parchment paper.

Bring sugar, butter, and evaporated milk to a boil in a heavy-bottomed saucepan, stirring constantly; cook and stir at a boil until mixture is smooth, 3 to 5 minutes.

Remove saucepan from heat; stir white chocolate chips and marshmallow crème into the sugar mixture until completely melted.

Add vanilla extract; stir.

Gently fold 1/2 cup crumbled cookies into the white chocolate mixture until just incorporated; spread into the prepared pan.

Sprinkle 1 cup crushed cookies evenly over the top.

Press cookies lightly into the fudge.

Cool at room temperature until set.

Cut into small squares to serve.