INGREDIENTS
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2 1/4 cups flour
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1 tablespoon cornstarch
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1/2 teaspoon baking powder
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1/2 teaspoon baking soda
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1/2 teaspoon salt
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9 Tablespoons salted butter, softened
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1 cup, packed brown sugar
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1 egg plus 1 egg yolk
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1 1/4 cups creamy peanut butter
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1 tablespoon vanilla extract
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1 1/2 cups chocolate chips, plus extra for tops (I used a combo of semi sweet, milk chooclate and mini chips)
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Mini Reese's peanut butter cups