Ingredients
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for vanilla cake base
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3/4 cup (170 grams) unsalted butter, softened
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2 1/2 cups (300 grams) cake flour
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1 1/2 teaspoon baking powder
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1/2 teaspoon baking soda
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1/2 teaspoon salt
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1 2/3 cups (334 grams) sugar
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1 cup (270ml) buttermilk
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1 teaspoon vanilla extract
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3 eggs, slightly beaten
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for chocolate part of cake
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1 ounce (28grams) chocolate, best unsweetened or 60% plus
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1/4 teaspoon baking soda
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2 tablespoons buttermilk
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1 tablespoon sugar
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option
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sifted confectioner's sugar, cocoa powder or shaved chocolate for decoration
Directions
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1
Done
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Preheat oven to 350F(180C). |
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2
Done
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Spray a 9-inch (about 22cm) tube pan or bundt cake pan with cooking spray, or butter and flour to prevent sticking. |
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3
Done
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In a medium bowl, sift together the flour, baking powder, 1/2 teaspoon salt and sugar. |
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4
Done
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In the bowl of an electric mixer, add the softened butter and using the paddle attachment, blend to create a creamy texture. |
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5
Done
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Add all the dry ingredients and blend on low speed, you do not want to over mix. |
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6
Done
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Combine the buttermilk and vanilla and stir into batter on a low speed. |
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7
Done
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Add the eggs and blend until incorporated, once again not over mixing. Set aside. |
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8
Done
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for chocolate cakeMelt the chocolate in a medium size heatproof bowl over a pot filled with a few inches of simmering water. |
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9
Done
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Remove from heat, add the 1/4 teaspoon baking soda, 1 tablespoon sugar, and 2 tablespoons hot water (use water you had simmering). |
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10
Done
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Whisk together until well blended. Then fold about 1 cup of the vanilla batter into the chocolate mixture creating the chocolate batter. |
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11
Done
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Add a small amount of the vanilla batter into the prepared baking pan, then add a small amount of the chocolate, alternating once again with vanilla and chocolate forming two layers of each. |
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12
Done
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Run a knife through the layers to create the marbling effect. |
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13
Done
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Bake for 45-50 minutes, starting to check cake after 35 minutes. The cake should be a little soft in the middle, just slightly bouncing back when touched towards the middle. |
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14
Done
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Remove from oven, allow to cool for 30 minutes and then invert baking pan onto a large serving plate. |
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15
Done
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Sift confectioner's sugar or combination of sugar and cocoa powder over cake if desired. |
