To make the burger patties, add the minced beef, egg, flour, salt and pepper to a large mixing bowl and mix everything well.
Use your hands to shape 5 patties.
Preheat the grill, spray it with cooking oil spray, and grill the burger patties.
If you use an electric grill like I did, there is no need to flip them over, otherwise, if you cook them in a pan, you will have to flip the burgers over to cook onto the other side too.
In the meantime, make the burger sauce.
Finely chop the pickled gherkins (dill pickles), and add them to small bowl together with the mayo, ketchup and tabasco.
Mix everything well.
When the burgers are ready, place a slice of cheese on top of each burger so that the heat coming from the burgers can melt the cheese.
Spread some of the sauce onto half of a bun, top with lettuce, arrange the cheeseburger on top, and spread more sauce over.
Top with the other half of the bun and serve hot.