Creating inner curves as holes

I have followed a few tutorials creating bezier curves etc and all looks great apart from areas that are holes. Most the tutorials state that blender will recognize a completed curve totally within another completed curve as a hole. This is not happening - I’m sure it’s something simple to fix but I can’t get it to work. I assume a bezier circle within another should create a ring but still no joy. Please advise - thanks in advance.

just add a bezier circle then go into edit mode and add another bezier circle scale re locate and that’s it
should work fine


Thanks - I was adding another circle in object mode.