I can see the header and footer just fine from my end but I can definitely say there is something wrong with the layout. Do you mind sharing temp admin access so we can check? You can use the private reply option below.
I’m actually a bit lost as to what the problem really is but what I did, I modified the code you have above to make the recipe page look like the regular posts(minus the sidebar). Is that what you wanted?
That is correct. Updating the main theme shouldn’t affect the code we have there. I can’t say the same for the plugin you’re using though. They might add new CSS that might override ours or change their layout.