Cream mayonnaise and cream cheese (helps to have cheese at room temperature). Add rest of ingredients and mix well. I have also doubled this recipe when having company. I prefer to chill several hours to allow flavors to mingle well. Stir after chilling and serve with crackers or chips. Stores in refrigerator for about 4 days.
Note: If you prefer, after shrimp is cooked, cooled and peeled, you can grind the shrimp, onions and pepper together. It is very pretty made with half red and half green pepper. I prefer diced shrimp and vegetables so you can get a better taste of each item.