INGREDIENTS
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1 box vanilla cake mix, plus ingredients called for on box
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Juice and zest of 1 lime
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1 c. butter, softened
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5 c. powdered sugar
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1/4 c. lime juice
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1/4 c. tequila
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Coarse salt, for garnish
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Lime zest, for garnish
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Lime wedges, for garnish