The viral Dalgona Coffee, inspired by a South Korean sponge candy, has become a global hit as people favour their sweet tooth while self-isolating. 'Dalgona' is actually a sponge candy, popular as a street food in South Korea. DIY Dalgona coffee videos have been sweeping the Internet all the way from Indonesia to the United States and even India. The recipe is quite simple. It uses instant coffee, warm water and sugar. With a whole lot of whisking, the coffee paste turns into a thick creamy mix and the 'inverse cappucino-style treat' is ready by adding milk. Netizens have been quick to share their own versions.