Ma Kitchen

Atomic Fudge Cake

A rich chocolate cake recipe.

Atomic Fudge Cake
Photo: “Atomicfudge1” by Novium at English Wikibooks, Public domain, via Wikimedia Commons

Ingredients

Makes
14
  • 2 cups (470 ml) white sugar
  • 1 ¾ cup (415 ml) flour
  • 1 ¾ cups (415 ml) baking cocoa powder
  • 1 ½ teaspoon (7 ml) baking soda
  • 1 ½ teaspoon (7 ml) baking powder
  • 1 teaspoon salt (5ml)
  • 2 eggs
  • 1 cup (235 ml) milk
  • ½ cup (120 ml) vegetable oil
  • 2 teaspoons (10 ml) vanilla extract
  • 1 cup (235 ml) boiling water
  • ⅛ cup (30 ml) cocoa
  • 7 oz (200 g) dark chocolate
  • ⅛ cup (30 ml) boiling water
  • 1/16 cup (15 ml) powdered sugar
  • ⅔ cup (156 ml) whipping cream

Ingredients for 14 servings (1.9 kg) · the original recipe

Method

  1. 1

    Cake: Mix the dry ingredients well in a large bowl. For better texture, sift the dry ingredients together with a sieve or sifter.

  2. 2

    Add the eggs, milk, vanilla, and vegetable oil, and mix well. Add the water, and mix it until it has a lot of little bubbles. This batter will be very thin.

  3. 3

    Pour into two greased 9-inch round baking pans.

  4. 4

    Bake in a preheated oven at 180°C for 30 minutes (about 20 minutes for a convection oven), or until a cake tester comes out clean. Remember not to over-bake the cake, as it may become really dry and lose all its moisture.

    Oven
  5. 5

    Cool the cakes completely, then unmold them.

  6. 6

    Frosting: Melt the chocolate by placing it in a double boiler.

  7. 7

    Mix the sugar and cocoa together in a small bowl, then mix in the water.

  8. 8

    Stir the sugar/cocoa/water mix into the melted chocolate.

  9. 9

    Quickly stir in the cream and mix until it has a smooth consistency.

  10. 10

    Immediately 'frost' the cake with this, making sure that there is quite a bit between the two layers of cake. The cake will need to be refrigerated to harden the fudge, so don't worry about its relatively liquid nature.

  11. 11

    Refrigerate cake.

  12. 12

    Serve warm after refrigeration. To serve, slice a piece and microwave it for about 20 seconds. The fudge will melt and soak into the cake. Serve with ice cream if you so desire.

    Microwave

Recipe from Wikibooks Cookbook, written by Wikibooks contributors. Used under the CC BY-SA 4.0 licence; the ingredient list and method on this page are taken from that page and edited (its notes, tips and variations are not reproduced), and are available under the same licence. The macros, equipment tags and scaling are Ma Kitchen’s own and are not the source’s figures. Ma Kitchen is not affiliated with or endorsed by Wikibooks Cookbook. Copied on 2026-11-12.

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