INGREDIENTS
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80 grams (2.8 ounces) butter, at room temperature
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the zest of 1 key lime
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100 grams (1/2 cup) granulated sugar
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1 egg
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the juice of 2 key limes (2 tablespoons or 25 ml)
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15 grams (2½ tablespoons) coconut flakes
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8 grams (2 teaspoons) baking powder
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220 grams (1¾ cup + 1 tablespoon) all-purpose flour
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You will also need:
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icing sugar (powdered sugar)
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granulated sugar
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white chocolate chips (optional)