INGREDIENTS
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3/4 cup butter, at room temperature
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3/4 cup brown sugar
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5 tablespoons white sugar
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2 large eggs
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1/2 teaspoon cream of tartar
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2 teaspoons vanilla extract
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1/4 teaspoon salt
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1 teaspoon cornstarch
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1 teaspoon baking soda
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1/4 teaspoon baking powder
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2 and 1/3 cup all-purpose flour
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1/2 cup oat flour (oats that have been blended)
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1 and 1/2 cup chocolate chips
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1/2 cup miniature chocolate chips or chocolate chunks
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1/2 cup M&M's