Spray a 9x9 inch square dish with cooking spray and set aside.
Combine the evaporated milk, butter, and sugar in a 3 quart saucepan.
Bring the mixture to a full rolling boil, stirring constantly.
Add a candy thermometer to the side of the pan with the bulb down into the mixture.
Boil until the temperature reaches 234 degrees, stirring constantly.
Take the mixture off the stove and place the pan on a hot pad.
Pour in the chocolate chips and stir until melted.
Add the marshmallow creme and vanilla extract and stir until blended
Add the nuts (optional) and stir in.
Pour the mixture into the 9x9 inch or 9x13 inch dish.
Cool, cut into squares and place in an airtight container.
This makes about 3 pounds of fudge.
Video
Notes
There are lots of tips for making fudge on the post found at: https://welcometonanas.com/never-fail-chocolate-fudge-recipe/The food science behind what is done in the recipe is very interesting and is scattered through the post.
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