Always the definite article. Always.
Is this like a mendella effect thing?
Corn of the cob.
… Cobbed corn…
Correct answer is actually Corn on Macabre.
A delightful cob of corn
I voted corn-on-a-cob.
I know it’s not how it’s said, but I think it would be ideal. “the-cob” implies an exact cob, the cob. A cob can be any cob, and that sits better with me
Why is Corn à la Cob not a choice?
If we were talking about a cob of corn that’d be correct, but with corn on the cob it’s a very different situation. The “the” relates to which cob the corn is on.
Sure, I’d be happy to eat any cob of corn (provided some basic standards), but if if you tried to serve me corn on any cob other than the one it was grown on I’d probably scream.
See, I think of it as there actually only exists one singular cob, but it has physics-defying properties and can manifest itself in an infinite number of locations all at once. So we’re all actually eating from the same corn cob
Cob, by Plato ™