Joe's Shrimp Cocktail

Ingredients

For the shrimp:
2 pounds (12 to 15-count) shrimp
3 stalks celery
2 medium onions
4Tbs. Old Bay Seasoning

For the sauce:
1/2 c ketchup
3tTbs. prepared horseradish
2 tsp. freshly squeezed lemon juice

Instructions