01 -
Line pan with parchment paper or foil, leaving an inch or two overhang on sides for easy removal.
02 -
Add sugar, butter, and milk to a medium to large saucepan. Heat on medium, stirring until it thickens and boils, pulling from sides of pan.
03 -
Continue stirring until mixture slowly boils into a foam (about 3-4 minutes).
04 -
Remove from heat and stir in white chips and marshmallows until completely melted.
05 -
Quickly stir in crumbled Oreos, making sure they are evenly distributed. Optional: reserve some crumbs for topping.
06 -
Pour into prepared pan, spread evenly with rubber spatula or wooden spoon. Let cool at room temperature to set.