Sort and wash the salad and spin dry immediately in a salad spinner.
Squeeze 1 lemon (for 2 tablespoons of juice), wash 2 lemons and cut into wafer-thin slices (for decoration).
Mix the mayonnaise with the ketchup. Always use more ketchup than mayonnaise so that the sauce gets a nice color and a little sweetness as a contrast to the spiciness.
If you like, add the brandy and a few dashes of Tabasco and Worcestershire sauce.
Then stir in 1 tablespoon of horseradish and season to taste. Then add another 1 - 2 tablespoons of horseradish to taste. Not too much of it; that would give too much heat and it should NOT taste dominant. Mix everything together well and add 1 - 2 tablespoons of lemon juice and a little salt and white pepper to taste.
Dab the prawns with kitchen paper and fry them briefly on both sides in a little heated olive oil (approx. 1 - 1/2 minutes).
Arrange the finely chopped iceberg lettuce on a long, beautiful plate, spread the prawns on top and sap with the cocktail sauce (do not drown).
Arrange the thin lemon slices decoratively on top and place 1 sprig of dill on each lemon slice.
This is a typical 80s dish that was served in every 5-star restaurant or hotel.