INGREDIENTS
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1/2 cup (4 oz or 125 g) plus 1 Tbsp of unsalted butter
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3 Renette or Golden Delicious apples, peeled, cored, and cut into slices 1/4 inch (6 mm) thick
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2/3 cup (3 1/2 oz or 105 g) all-purpose flour
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1/2 teaspoon baking powder
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1/2 teaspoon salt
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2 whole eggs, plus 1 egg yolk
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1 teaspoon vanilla extract
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1 cup (8 oz or 250 g) granulated sugar
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1/2 teaspoon grated lemon zest
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Confectioners' sugar (optional)