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Chocolate Cake Traybake

This easy chocolate cake traybake is covered with luscious, glossy frosting. This amazing cake keeps well for at least one week.

Prep Time
20 mins
Cook Time
20 mins
Total Time
45 mins
Servings: 18 squares
Calories: 474 kcal
Course: Cake
Cuisine: British

Ingredients

Chocolate tray bake (Note 1):
  • 250 g dark chocolate 9 oz, 70% cocoa
  • 6 eggs large
  • 250 g unsalted butter room temperature, 9 oz/ 1 cup
  • 250 g granulated sugar 9 oz/ 1 ¼ cups
  • 100 g all-purpose flour 3.5 oz/ ¾ cup + 1 tablespoon
  • 250 g ground Hazelnuts 9 oz/ 2 cups
  • ¼ teaspoon ground cardamom optional, Note 2
  • a pinch of salt
Frosting:
  • 175 g semi-sweet chocolate chopped, 6 oz/ 1 cup
  • 125 ml heavy cream ½ cup
  • 1 tablespoon granulated sugar
  • 75 g unsalted butter 2.5 oz/ ¼ cup + 1 tablespoon
Decoration:
  • chocolate decoration of choice

Instructions

Chocolate traybake:
    Cup of Yum
  1. Preheat the oven to 350°F/ 180°C. Line a baking tray with parchment paper.
  2. Chocolate: Chop and place the pieces into a food processor and grind finely. Alternatively, you can grate the chocolate on a regular grater.250 g dark chocolate/ 9 oz
  3. Wet ingredients: Place the eggs, soft butter, and sugar into a bowl. Mix until fluffy.6 eggs + 250 g unsalted butter/ 9 oz/ 1 cup + 250 g granulated sugar/ 9 oz/ 1 ¼ cups
  4. Dry ingredients: In another bowl, mix together the flour, hazelnuts, grated dark chocolate, ground cardamom (if using), and a pinch of salt. Add the mixture to the egg and butter mixture and incorporate.100 g all-purpose flour/ 3.5 oz/ ¾ cup + 1 tablespoon + 250 g ground hazelnuts/ 9 oz/ 2 cups + ¼ teaspoon ground cardamom + a pinch of salt
  5. Bake cake: Pour the batter onto the prepared baking tray and level the surface. Bake for 25 minutes.
  6. Cool cake: Rest for about 15 minutes, then cut it into pieces. Leave to cool completely on the baking tray.
Chocolate glaze:
  1. Chop the semi-sweet chocolate finely. Set aside.175 g semi-sweet chocolate/ 6 oz/ 1 cup
  2. Combine glaze: Pour the cream into a small saucepan. Bring to a light simmer. Remove from the heat and stir in the chocolate, sugar, and cubed butter. Stir well until the chocolate is completely melted.125 ml heavy cream/ ½ cup + chocolate + 1 tablespoon granulated sugar + 75 g unsalted butter/ 2.5 oz/ ¼ cup + 1 tablespoon
  3. Slowly pour the frosting over the cake. Leave to set, but keep in mind that it will not become solid, it remains slightly soft and glossy.
  4. Decorate with the chocolate decoration of choice.

Notes

  • Measurements: Always use a kitchen scale in baking; it guarantees the best results. This recipe is not tested using cup measurements (the Amazon affiliate link opens in a new tab).
  • The cardamom can be left out or replaced with cinnamon.

Nutrition Information

Serving 1square Calories 474kcal (24%) Carbohydrates 34g (11%) Protein 7g (14%) Fat 36g (55%) Saturated Fat 17g (85%) Polyunsaturated Fat 17g Cholesterol 109mg (36%) Sodium 39mg (2%) Fiber 4g (16%) Sugar 24g (48%)

Nutrition Facts

Serving: 18squares

Amount Per Serving

Calories 474

% Daily Value*

Serving 1square
Calories 474kcal 24%
Carbohydrates 34g 11%
Protein 7g 14%
Fat 36g 55%
Saturated Fat 17g 85%
Polyunsaturated Fat 17g 100%
Cholesterol 109mg 36%
Sodium 39mg 2%
Fiber 4g 16%
Sugar 24g 48%

* Percent Daily Values are based on a 2,000 calorie diet.