INGREDIENTS
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6 tablespoons butter, at room temperature, plus more for the pan
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3/4 cup plus 2 tablespoons granulated sugar
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1 large egg
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1 teaspoon vanilla extract
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1 1/2 cups flour, plus more for the pan
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2 teaspoons baking powder
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1 pinch salt
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1/2 cup milk, preferably whole
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Grated zest of 2 small lemons, preferably organic
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2 to 3 Golden Delicious apples, peeled, cored, and thickly sliced
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Confectioners’ sugar (optional)