Chef John's Hot Buttered Rum
Cook time:
less than a minute
Ingredients:
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8 tablespoons unsalted butter, at room temperature
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½ cup firmly packed dark brown sugar
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¼ teaspoon pure vanilla extract
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½ teaspoon ground cinnamon
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⅛ teaspoon ground ginger
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¼ teaspoon ground nutmeg
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⅛ teaspoon ground cardamom
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1 pinch ground cloves
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1 pinch salt
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6 tablespoons heavy cream
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1 ⅛ cups dark rum
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4 ½ cups boiling water, or as needed
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⅛ teaspoon ground nutmeg, or to taste