Curd, also known as yogurt, is not typically used as an ingredient in cake recipes. However, there are certain types of cakes that do incorporate yogurt for added moisture and flavor. This can be particularly common in recipes for moist and tender cakes, such as pound cakes or some variations of coffee cakes. The yogurt helps to keep the cake moist and can also contribute to a slight tangy flavor.
When using yogurt in cake recipes, it is important to use plain, unsweetened yogurt without any added flavors or sweeteners. Greek yogurt or regular yogurt can both be used, depending on personal preference and the desired texture of the cake.
It's worth noting that the specific ingredients and measurements for cake recipes can vary depending on the type of cake and the recipe being followed. So, if you're looking for a specific cake recipe that includes yogurt, it would be helpful to specify the type of cake you have in mind.