– 1¼ cups (150 g) all purpose flour – ½ teaspoon salt – ½ teaspoon baking soda – ¼ teaspoon baking powder – ½ cup (113 g) unsalted butter, softened but still cool to the touch – ¾ cup (150 g) light brown sugar – ¼ cup (50 g) granulated sugar – 1 large egg, room temperature – 1 large egg yolk, room temperature – 2 teaspoons (10 ml) vanilla extract – ½ cup (128 g) creamy peanut butter
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