INGREDIENTS
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7/8 cup (110g) all-purpose flour
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7/8 cups (175g) granulated sugar
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1/2 cup (45g) Dutch-process cocoa powder, sifted*
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1 teaspoon baking powder
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1/4 teaspoon baking soda
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1/4 teaspoon fine sea salt
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1/3 cup (80g) full fat sour cream
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1/4 cup (56g) vegetable oil
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1 large egg, at room temperature
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2 teaspoons vanilla extract
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100mL (a little under 1/2 cup) hot brewed coffee or hot water
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1/3 cup (80g) heavy cream
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1/4 cup (56g) unsalted butter, cut into chunks
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2 oz (56g) good quality dark chocolate (60-70%), finely chopped
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1/3 cup (100g) granulated sugar
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1/3 cup (30g) Dutch-process cocoa powder, sifted*
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1/3 cup (80g) full fat sour cream, at room temperature
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1 teaspoon vanilla extract
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pinch fine sea salt