I just googled one of my go-tos to see if it was as good a recommendation as I think it is (one of several).
everyone's different, but a 10-second glance at the search results suggest I'm right, in the o pinions of others as well.
https://www.google.com/search?q=peanut+butter+as+a+survival+food&oq=peanut+butter+as+a+survival+food&aqs=chrome..69i57.5593j0j1&sourceid=chrome&ie=UTF-8
I'm also fanatical about (more so lately) having probably 80 gallons for of all kinds of containers lying around filled with water at all times. That's in additional to a hot water tank which would have another 40 if the flow turned off. Easy to fill vessels when it's freely flowing, and if it ever stopps, you'll wish you had just 10 more minutes of it on with the knowledge that it was about to shut off.