Step 1

Line a 9-inch by 9-inch square baking pan with parchment paper and set it aside.

Step 2

Add the butter to a medium sized saucepan and melt on medium heat.

Step 3

Pour the sugar into the saucepan.

Step 4

Next, pour the evaporated milk into the saucepan and mix the ingredients.

Step 5

Bring the mixture to a full rolling boil on medium-high or high heat and cook until the candy thermometer reaches 234 degrees.

Step 6

Once the mixture reaches 234 degrees, remove it from the stovetop and mix in the marshmallow cream until it melts.

Step 7

Next, add the vanilla extract and mix.

Step 8

Add the butterscotch chips and stir until melted.

Step 9

Pour the butterscotch fudge mixture into the prepared dish and allow it to set up for at least three hours.