INGREDIENTS
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1/2 cup butter, softened
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2/3 cup sugar
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1 egg, separated
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2 tablespoons milk
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1 teaspoon vanilla extract
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1 cup all-purpose flour
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1/3 cup baking cocoa
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1/4 teaspoon salt
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1 cup finely chopped pecans, or more as needed
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About 20 Hershey Kisses, unwrapped Caramel filling:
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1/2 c. brown sugar
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2 Tbsp. water
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1/3 c. heavy cream
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2 Tbsp. butter
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1/4 tsp. vanilla