Spread butter one side of the bread.

Keep the buttered slice on the sandwich maker facing the buttered side down.

Spread some green chutney on the top the bread.

After that place some onion, egg and tomato slices.

Sprinkle some chat masala, black pepper powder and black salt on it.

Place one more buttered slice of the bread on top of this.

Let the buttered slice be on the top. This will make the top portion grill perfectly.
Toast this in a sandwich maker.

Serve hot with tomato sauce.