INGREDIENTS
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3 c. all-purpose flour
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6 T. cocoa
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1 tsp. salt
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2 c. sugar
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1 T. espresso powder
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2 tsp. baking soda
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2/3 c. vegetable oil
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2 T. vinegar
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2 c. cold water
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2 tsp. vanilla
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2 c. marshmallow cream, purchased or homemade
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1 c. unsalted butter, softened
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2 tsp. cinnamon
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1/2 tsp. ground ginger
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1/4 tsp. nutmeg
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1/4 tsp. allspice
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1/8 tsp. ground cloves
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1-1/2 c. unsalted butter, at room temperature
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2 c. powdered sugar, sifted
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2 T. heavy cream
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1 tsp. pure vanilla extract
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1/4 tsp. cinnamon, plus more for dusting the finished cupcake
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1/4 tsp. kosher salt
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6 oz. semi-sweet chocolate, melted and cooled