Cook's Illustrated

Old-Fashioned Chocolate Fudge

Published January 1, 2007.

Our test cook made 1,000 pounds of fudge during his four months of recipe testing.

The Problem

Making fudge sounds simple, but the process requires skill and patience.

The Goal

We wanted a traditional fudge—slightly grainy but melt-in-your-mouth creaminess.

The Solution

We learned four key lessons. First, add more chocolate than traditional recipes call for. Second, precision counts. The ideal temperature for the sugar syrup is 238 degrees—at 234 degrees, the fudge is soft and gooey, while at 242 degrees, it's dry and crumbly. Third, fudge needs a quick chill; cooling the fudge right in the pot took 90 minutes. We sped the process up by dividing the chocolate, cooking half, and freezing the other half to be added with frozen butter at the end of the cooking process. We also shocked the hot pot in cool water. Finally, the process takes big muscles. While we found a process that cut the 20-minute stir the fudge originally required, our "lazy man stir" still takes some strength. Make a couple of passes around the perimeter of the pan, lift the syrup and let it fall off the spoon, and then stop for a minute so the sugar can form the small crystals that make the traditional fudge slightly grainy. After about 8 minutes, the fudge will begin to lose its shine and stiffen.

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America's Test Kitchen

America’s Test Kitchen is a 2,500-square-foot kitchen located just outside of Boston. It is the home of Cook’s Country and Cook’s Illustrated magazines and is the workday destination for more than three dozen test cooks, editors, and cookware specialists. Our mission is to test recipes until we understand how and why they work and arrive at the best version. We also test kitchen equipment and supermarket ingredients in search of brands that offer the best value and performance. You can watch us work by tuning in to America’s Test Kitchen (www.americastestkitchen.com) on public television.