The Best Easy Chocolate Cake

This easy wartime cake made with mayonnaise had a lot of good things going for it. Chocolate flavor wasn’t one of them.

YIELD Makes one 8-inch-square cake

TIME 1 hour, plus 1 hour cooling

Why This Recipe Works

Gather Your Ingredients

Before You Begin

*

We recommend using one of the test kitchen’s favorite baking chocolates, Callebaut Intense Dark L-60-40NV, or Ghirardelli Bittersweet Chocolate Baking Bar for this recipe, but any high-quality dark, bittersweet, or semisweet chocolate will work. Instead of confectioners’ sugar, the cake can also be served with sweetened whipped cream.

Instructions

1.

Adjust oven rack to middle position and heat oven to 350 degrees. Lightly spray 8-inch-square baking dish with nonstick cooking spray.

2.

Whisk flour, sugar, baking soda, and salt together in large bowl. In separate bowl, combine cocoa and chocolate; pour hot coffee over cocoa mixture and whisk until smooth; let cool slightly. Whisk in mayonnaise, egg, and vanilla. Stir mayonnaise mixture into flour mixture until combined.

3.

Scrape batter into prepared pan and smooth top. Bake until wooden skewer inserted into center of cake comes out with few crumbs attached, 30 to 35 minutes.

4.

Let cake cool in pan on wire rack, 1 to 2 hours. Dust with confectioners’ sugar, cut into squares, and serve straight from the pan; or turn cake out onto serving platter and dust with confectioners’ sugar.

FROM OUR TV SPONSORS

We are thankful to the sponsors who make it possible for us to bring you the America's Test Kitchen TV series on public television. Read more about why we have sponsors.