INGREDIENTS
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10 ounces semisweet chocolate, chopped
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3 ounces unsweetened chocolate, chopped
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1/4 cup butter, cut into chunks
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3 eggs, at room temperature
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1 cup plus 2 tablespoons sugar
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1 teasspoon instant espresso powder
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2 teaspoons vanilla extract
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6 tablespoons flour
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3/4 teaspoon baking powder
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1/4 teaspoon kosher salt
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1 1/2 cups semisweet chocolate chips
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For ganache:
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6 ounces semisweet chocolate, chopped
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3/4 cup whipping cream