Hot dog or Hot dog sandwich?

My husband is Mr. easy. He's generally accepting and rarely critical. However I can earn his immediate rebuke with three words, "hot dog Sandwich." He insist that a "hot dog" is not a sandwich and persistence in calling it one does not actually make it so. I fundamentally disagree. Anything, between two things is by definition, a SANDWICH!!! Enter our household, and the great debate.

To settle this matter, I did what folks of our era do, I took it to Google. Imagine my shock to find that this topic has been discussed for quite sometime. So intense are the opinions, that the National Hot Dog and Sausage Counsel was asked to officially rule on the matter. Yes, there is such a thing. I'll save you the search. My husband is clearly running that counsel, because they got it wrong. They said it's a hot dog. Thankfully, my guy isn't aware of the official ruling, nor have I shared it with him. I'm rather fond of peace, and I prefer my environment gloat free.

Settle this for us. What say ye? A "hot dog," or a "hot dog sandwich?" Hint: correct answer written in bold.