Bishul akum - quinoa, french fries?

Do the prohibitions of bishul akum apply to:

  1. Quinoa?

  2. Potatoes (french fries etc.)?

  1. It may
  2. Depends on how it is prepared.

Can you elaborate?

See Ohr Yitzchak vol1 Yoreh Daeh siman 9 for an in depth explanation

Thanks for directing me there. I’m still unsure of the “metziyos”… Are cooked quinoa and fried potatoes oleh al shulchan melachim?

That is the part that is difficult to ascertain. Regarding potatoes, we know certain ways of preparing them such as potato chips would not be an issue. Regarding quinoa, it’s a rather new product in the world and we simply don’t know what or how it is prepared for leaders and royalty. It would need to be researched.