INGREDIENTS
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6 tablespoons all-purpose flour
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1/2
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teaspoon baking powder
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1/8
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teaspoon salt
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2 eggs
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1/2
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cup sugar
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1 - 2 tablespoons coffee liqueur or strong brewed espresso
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2 teaspoons vanilla
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10 ounces espresso-flavor chocolate baking bar or bittersweet (67 percent cocoa) chocolate bar, chopped
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2 tablespoons butter
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12 ounces dark (70 percent cocoa) chocolate baking bar, chopped