They call this 黑白配 (Black White Match). It's a type of Muah Chee (Glutinuous Rice Balls) coated in Traditional Crushed Peanut & Sugar (brown color) and a modified version with Black Sesame with sugar (black color). This is supposedly the famous Hougang Muah Chee now located at the Basement Food Court at HDB Hub. All I can say is that it was really yummy!! Must try!!! 5/5