INGREDIENTS
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2 cups all-purpose flour
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½ tsp. baking soda
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¼ tsp. salt
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8 tbsp. unsalted butter, at room temperature
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½ cup vegetable oil
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½ cup granulated sugar, plus more for sugaring the tops
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½ cup confectioners' sugar
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1 large egg
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2 tsp. vanilla extract
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Zest of half a lemon
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Zest of half an orange