This old fashioned Evaporated Milk Fudge boils for just 4 to 5 minutes, then mini marshmallows and chocolate chips melt in for creamy, chocolaty squares. No candy thermometer needed.
Line an 8x8-inch pan with parchment paper or foil. Lightly spray it with nonstick cooking spray.
Combine the butter, evaporated milk, sugar and salt in a medium saucepan over medium heat. Bring to a boil, then cook for 4 to 5 minutes, stirring constantly.
Remove from the heat. Stir in the marshmallows, chocolate chips and vanilla. Stir fast, just until combined and smooth, a minute or less.
Pour into the prepared pan and spread it evenly. Chill for at least 2 hours, or up to overnight. It's best if the fudge is completely firm before cutting. Lift out and cut into 36 squares.
Notes
Use evaporated milk: Sweetened condensed milk won't work in this recipe. Start timing once the mixture boils, and stir the whole time so the sugar doesn't scorch.