Step 2
For each burger, spread the mayonnaise on both halves of the bun. On the bottom half, place a piece of lettuce, then the burger patty. Lay a gherkin slice over the top of the patty so it hangs over the edge to resemble a 'tongue'. Add a jagged slice of cheese, then carefully squeeze some ketchup over the top of the teeth. Position the top half of the bun at a slight angle so you can see the mouth inside.