In a bowl add mayonnaise, chopped onion, tomato, cucumber, salt, black pepper and mix well.

Cut the burger buns into middle.

In a pan add butter and shallow fry the burger buns.

Now spread mayonnaise mixture on burger bun.

Arrange burger patty on it.

Spread some mayonnaise mixture.

Arrange mad angles and cover with another piece of burger bun.

Our jalapeno burger is ready. Now serve with ketchup.