INGREDIENTS
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2 1/4 cups all-purpose flour
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1 1/2 cups old fashioned oats
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3/4 teaspoon baking powder
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1/4 teaspoon baking soda
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1/2 teaspoon fine sea salt
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3/4 cup (1 1/2 sticks) unsalted butter, melted
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2 cups packed light brown sugar
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3/4 cup creamy peanut butter, room temperature
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2 large eggs
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2 teaspoons vanilla extract
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1 cup semisweet chocolate chips
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1 cup peanut butter chips
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2/3 cup mini peanut butter cups (or peanut butter M&Ms)
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1/2 teaspoon flake sea salt (such as Maldon), for sprinkling