Quick Double-Chocolate Sheet Cake

Name: Quick Double-Chocolate Sheet Cake
Prep time: 15 min
Cook time: 35 min
Total time: 50 min
Yield: 12 servings
Cuisine: American
Ingredients: ¾ cup butter; 1 cup superfine sugar; 4 whole large eggs; ¼ cup unsweetened cocoa; 1⅔ cups self-rising flour; ½ teaspoon baking powder; 3½ ounces semisweet chocolate chips; 1 tablespoon unsweetened cocoa; 5½ tablespoons butter; 1⅔ cups confectioners sugar

A decadent double-chocolate sheet cake featuring a moist chocolate sponge studded with chocolate chips and topped with rich chocolate frosting. Perfect for parties or family gatherings.

12 servings

1 hr 5 min

Published October 4, 2025

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Ingredients

•¾ cup butter
•1 cup superfine sugar
•4 whole large eggs
•¼ cup unsweetened cocoa
•1⅔ cups self-rising flour
•½ teaspoon baking powder
•3½ ounces semisweet chocolate chips
•1 tablespoon unsweetened cocoa
•5½ tablespoons butter
•1⅔ cups confectioners sugar

Cooking Instructions

1.
Preheat the oven to 350°F. Grease and line a 11 x 7 x 2-inch baking pan.
5 min
2.
In a large bowl, place the softened butter, sugar, eggs, and dissolved cocoa. Sift over the flour and baking powder. Using a hand mixer, beat the mixture until it is pale and creamy, about 2 minutes. Using a metal spoon, fold in the chocolate chips.
10 min
3.
Turn the mixture into the greased pan and spread it out evenly. Bake for 30 to 35 minutes, or until risen and springy to the touch. Cool slightly before turning out onto a wire rack.
35 min
4.
Once the cake is cool, in a bowl, place all the frosting ingredients and, using the hand mixer, beat together well. Spread over the cake. Run a fork across the surface of the frosting to create a wavy pattern of lines.
15 min