Traditional Chocolate Fudge

Why This Traditional Chocolate Fudge Works

As the sugar, butter, and evaporated milk boil together, the sugar starts to dissolve and thicken. With steady heat and constant stirring, the liquid cooks down and turns glossy and smooth instead of grainy. Those 5 minutes of boiling let the sugar cook just enough so the fudge will set firm later, but still stay soft when bitten.

Once the hot syrup comes off the stove and the chocolate chips go in, the heat melts the chocolate right away. Everything blends into one thick, shiny mixture. After that, the marshmallow creme goes in and changes the texture again. It lightens the fudge and keeps tiny air pockets inside, so the finished squares are creamy instead of hard.

As the pan of fudge cools, the sugar and chocolate slowly firm up. During this time, the butter and marshmallow stay spread through the candy and keep it from drying out. After chilling, the fudge holds its shape when cut, but still has that smooth, melt-in-the-mouth feel.

Mistakes To Avoid

Letting the sugar, butter, and evaporated milk boil for less than the full 5 minutes leaves the mixture too thin. The sugar doesn’t fully concentrate, so the fudge sets very soft or even stays gooey and won’t hold clean squares.

Boiling the mixture too long or over very high heat pushes it past thick and into grainy or even scorched. The sugar starts to crystallize or burn on the bottom of the pan, so the finished fudge turns sandy or has bitter, hard bits.

Adding the chocolate chips before taking the pan off the heat often makes the chocolate seize. The chips can overheat, turn dull and thick, and the fudge sets with a stiff, slightly greasy texture instead of a smooth bite.

Stirring lazily once the marshmallow creme goes in leaves streaks and lumps. The fudge doesn’t become fully creamy, so some pieces end up with chewy pockets of marshmallow or uneven chocolate spots.