Shrimp cocktail

To accompany the cocktails you serve crackers

Ingredients: ½ kilo of shrimp tails
2 avocados strong variety
2 tablespoons tomato sauce
¾ cup mayonnaise
½ regular white onion
1 tablespoon Porto
lettuce
Salt to taste Preparation: 

1. Cook the shrimp tails with a pinch of salt and then peel them. Mix in a bowl of tomato sauce, port, mayonnaise and finely chopped white onion.
2. Cut the avocados into small pieces. Place in a proper glass at the back, a lettuce leaf. Then crank up the pieces of avocado and shrimp tails. Cover with the prepared sauce.
3. If you want you can garnish with sliced boiled egg.To accompany the cocktails you can serve some crackers.