Boil the egg for 6 minutes and peel and set aside Melt the butter, garlic and seasoning together in a saucepan on the lowest heat and allow it to all infuse Once the butter starts bubbling add in the prawns and allow them to cook slowly Once cooked remove with a slotted spoon and set the prawns and garlic aside Grate the garlic from the prawns into a bowl Add in the mayonnaise, sriracha sauce and the butter that was used to cook the prawns and mix well Finish with some fresh dill Then assemble the salad in a bowl adding the lettuce, prawns, onion, olives, gherkins and egg.