Chilled Shrimp with cocktail sauce

1 1/2 lbs large raw shriimp in their shells
1 2/3 C V-8 Juice
1/3 c prepared horseradish(I prefer unprepared)

Bring a large pot of water to boil, with salt. Add the shrimp, reduce heat to medium, cook until shrimp are just firm. (3 to 4 min) DO NOT OVER COOK! Immediately transfer the shrimp into a bowl of ice salted water to cool.

In a small saucepan, bring the V8 juice to a boil. Reduce the heat to medium and cook until reduced to 1 cup, 10- 15 min. Let cool. Stir in the horseradish and chill until cold.