Line an 8x8 inch pan with parchment paper or lightly grease it for easy removal of the fudge.
In a medium saucepan, combine the sugar, evaporated milk, and salt. Stir continuously over medium heat until the sugar dissolves.
Bring the mixture to a boil and cook for about 5 minutes, stirring constantly.
Remove the saucepan from heat. Quickly add in the chocolate chips, butter, and marshmallow fluff.
Stir vigorously until everything is melted and the mixture is smooth.
Stir in the vanilla extract for a hint of extra flavor.
Pour the mixture into the prepared 8x8 inch pan, smoothing it out with a spatula to ensure an even layer.
Let the fudge cool at room temperature for about an hour, then transfer it to the refrigerator for another 2-3 hours to set completely.
Once firm, remove the fudge from the pan and cut it into bite-sized squares. Enjoy the rich, creamy indulgence of Mamie Eisenhower’s Million Dollar Fudge!
