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1 cup butter or margarine, softened
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1/2 cup packed brown sugar
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1/3 cup granulated sugar
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2 teaspoons vanilla extract
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1/2 teaspoon salt
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1 large egg yolk
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2 1/2 cup all-purpose flour
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12 ounces NESTLÉ ® TOLL HOUSE ® Semi-Sweet Chocolate Mini Morsels, divided
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1 package (16-oz.) prepared vanilla frosting, colored if desired
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