INGREDIENTS
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1/3 cup butter (softened)
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1 cup sugar
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2 eggs
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1 Tbsp lime zest (grated)
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1 Tbsp Key lime juice
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1 tsp vanilla
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1 1/2 cups flour, (all purpose)
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1 1/2 tsp baking powder
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1/2 tsp salt
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1/2 cup buttermillk
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3/4 cup powdered sugar
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1-2 Tbsp Key lime juice