The smell of freshly-baked bread is amazing. Too bad that's not what's happening here.

Steve and Tony decide to bake bread (dare? some sort of internet challenge? Did Steve say "back in my day the bread tasted better" and Tony decide that he would make the Best Damned Bread known to mankind, and Steve figure it'd be a nice way to spend quality time together? whatever reason! you pick!)and it doesn't end up going as expected.