INGREDIENTS
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3 TBSP unsalted butter, softened
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¼ cup brown sugar
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2½ TBSP whisked egg
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½ tsp vanilla
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large pinch salt
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¼ tsp baking powder
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¼ tsp baking soda
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½ cup flour
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¼ cup chocolate chips, plus 2 TBSP more for topping
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a bit of kosher or sea salt for sprinkling (optional)