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Preheat oven to 325.
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Line a 9 inch square baking pan with foil and spray with cooking spray.
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Process all the shortbread ingredients in a food processor until it barely starts to clump.
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Put in pan and press down.
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Bake at 325 about 40 minutes, or until golden brown.
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Let cool.
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Meanwhile, melt butter in large bowl in microwave (mine took 1 minute on hi).
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Stir in condensed milk and corn syrup.
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Microwave 2 minutes at 50%, stir.
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Microwave 8 minutes longer at 50%, stopping every minute or so to stir.
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Be careful it doesn't boil over!
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Continue until the caramel is light golden brown, and then stir in peanuts.
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Pour over crust.
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Sprinkle chocolate chips over hot caramel, let melt and spread carefully to cover.
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Refrigerate until firm (about 1 hour), remove from pan, peel off foil, and cut into 36 squares.
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Store in refrigerator.