"Rich, dark chocolate cake with creamy coffee icing and a drizzle of dark chocolate...."
INGREDIENTS
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1 cup (227g) sourdough starter ripe (fed) or discard
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1 cup (227g) milk (whole milk or 2% preferred) or evaporated milk
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2 cups (241g) King Arthur Unbleached All-Purpose Flour
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1 1/2 cups (298g) granulated sugar
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1 cup (198g) vegetable oil
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2 teaspoons vanilla extract
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1 teaspoon salt
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1 1/2 teaspoons baking soda
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3/4 cup (64g) natural cocoa powder (not Dutch process)
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1 teaspoon espresso powder optional
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2 large eggs
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6 cups (680g) confectioners' sugar
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3/4 cup (170g) butter
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1/2 cup (113g) plain yogurt or buttermilk
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1 tablespoon + 1 1/2 teaspoons espresso powder
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1 tablespoon (14g) hot water
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1/3 cup (57g) semisweet chocolate chips
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1 tablespoon (14g) milk
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1 tablespoon (21g) corn syrup