INGREDIENTS
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1 1/2 cups all-purpose flour
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3 1/2 teaspoons baking powder
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3/4 teaspoon salt
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1 tablespoon granulated sugar
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1 cup plus 1 tablespoon milk
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1 large egg
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1 teaspoon vanilla extract
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3 tablespoons unsalted butter, melted
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1 large egg white
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1/2 cup mini chocolate chips, optional