Despite sharing a similar name, curry powder and curry paste are (and taste) very different! Curry powder is a dry ingredient made from dried and ground spices, while curry paste is usually made from a blend of spices, finely chopped and ground herbs, and sometimes other ingredients like fish sauce or shrimp paste, depending on the country of origin. We also wouldn’t recommend substituting one for the other, as the flavour will be totally different than you would normally be going for in the main recipe you’re making.