[Spencer Higbee]

I believe you could start with a cylindar shape flattened, make editable, add a shadder effector and displace the vertices to a noise map to create a slight wave in the cyclindar’s shape.

After you get the base shape of the poppadom you can texture it by applying a noise displacement (https://www.behance.net/gallery/23596889/Cinema-4D-Noise-Palette-2015) view this link for a better understanding of what each noise creates to create the bumps on the poppadom.