How can a grainy curry sauce be corrected?

Pass through a sieve: You can use a sieve or a fine-mesh strainer to remove the grainy bits. Press the sauce through the sieve using the back of a spoon or a spatula. This method is more time-consuming but ensures a smooth sauce.

Grind in a blender: Add the grainy sauce to a blender and puree until smooth. Be careful not to over blend, or the sauce may lose its body and become too thin.

Use an immersion blender: an immersion blender or stick blender can be used directly in the pot without transferring the sauce to a blender. This is a convenient method if the sauce is already in the serving dish or pot.

Add a bit of liquid: If the curry sauce is too thick and grainy, add a small amount of liquid such as water, coconut milk, or stock. Stir well to combine and adjust the consistency.