Title: Emergency Chocolate Cake
Category: Desserts
Cuisine: American
Servings: 9
Source: The America's Test Kitchen Family Cookbook
Rating: Great
Preparation time: 5 minutes
Cooking time: 45 minutes
Adjust an oven rack to the middle position and heat the oven to 350 egrees. Lightly coat an 8-inch square cake pan with vegetable oil spray.
Whisk the flour, sugar, cocoa, and baking soda together in a large bowl. In a separate bowl, whisk the mayonnaise, water, and vanilla together. Stir the mayonnaise mixture into the flour mixture until combined.
Scrape the batter into the prepared pan and smooth the top. Bake until a wooden skewer inserted into the center of the cake comes out with a few crumbs attached, 35 to 40 minutes.
Let the cake cool in the pan on a wire rack, 1 to hours. Cut into squares and serve straight from the pan or turn the cake out onto a serving latter and dust with confectioners' sugar (if desired).
To Make Ahead
After the cake has cooled, it can be wrapped tightly in plastic wrap and ket at room temperature for up to 3 days.