Home DIY

So you would pull open the big drawer then pull open the smaller one?

Yep, something like this:- https://www.howdens.com/content/image/2358-4336-1.jpg

Not sure if you could avoid interference from the back of the big drawer hitting the back of the smaller and pushing it forward, unless you leave the back of the big one with only a lip on the lower part to prevent pots from falling out.

The existing drawer is ~70cm wide and 28cm deep, but the back is only 12cm high. So an internal drawer that was, say, 65cm wide and 10cm deep would still allow the plates and other bits to remain in the main part of the drawer. Ideally it would be something that attaches at the top only, so it would screw into the underside of the top of the existing cabinet.

Hoping someone knows if they've ever seen one that can just be purchased and fitted by a ham fisted idiot (me).