INGREDIENTS
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1 stick unsalted butter
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1/2 cup packed light brown sugar
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1/4 cup granulated sugar
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1 large egg
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1/2 teaspoon pure vanilla extract
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1 cup all-purpose flour
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1/2 cup cake flour
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2 tablespoons instant vanilla pudding mix
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1/2 teaspoon baking soda
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1/2 teaspoon corn starch
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1/4 teaspoon kosher salt
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1 1/4 cups dark chocolate chips
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1 teaspoon fleur de sel sea salt