Take softened butter in a bowl and beat/mix it for a few seconds with a fork. Until it is soft and smooth.

Then take a burger bun and slice it horizontally.

Apply butter generously on both slices.

Take a small bowl, add powdered sugar and chaat masala powder. Mix well.

Sprinkle the prepared masala over the buttered buns.

Combine both slices. Cut it vertically.

Masala bun makkhan is ready to serve.