Someone asked on another food website:
What do you do with “Hot Dog Water”?
You know, the water that you use to boil hot dogs? Seems like such a waste to just dump it.
Here are some of the funny answers:
- If you have some rice and any leftover hot dogs, how about hot dog risotto?
-Cook lobsters in it.
-If there is a drought, accumulate it with other water(s) and use it to flush the toilet
-Maybe you could freeze it and put hot dog ice cubes in Bloody Marys.
-You could parboil the hot dogs and then use the liquid for split pea soup and add sliced hot dogs at the last.
-You could use it to thin canned chili.
-Savory shaved ice.
-Use it as a mixer with vodka … vodka goes well with pretty much anything.
-Bottle it & sell it as dog perfume?
-I’d use it for the same thing I use canned Tuna juice when squeezed of the tuna…put it over the dogs food at night.
-Save up ketchup packets from restaurants and add to hot dog water to make tomato soup. Also save up some saltine packets from restaurants to garnish the tomato soup.
-Take one tablespoon of hot dog water and call the doctor in the morning. 
-Hot dog water microwave risotto with crumbled potato chips on top?
-Hot dog water to make instant mashed potatoes. Cover chopped hot dogs with instant mashed potatoes to make hot dog shepherds pie.
-Or, maybe you could have it blessed, making it Holy Hot Dog Water, and then sell it on Ebay.
-Maybe it could be used as “au jus” for a grilled cheese sandwich?
-Hot dog water ramen.
-If you collect enough hot dog water and dry it you can make hot dog bouillon cubes. Of course the hot dog bouillon cubes would be a poor substitute for the real thing.
-The worlds 2nd shortest book: “Things to do with left over hot dog water.” The worlds shortest book is of course: “Things to do with left over rice water.”
-Wait a minute! I think we have a new Jones Soda Flavor. Hot Dog Water. They could sell it in a six pack with Lima Bean water, Vienna Sausage juice, Tuna water, Hard Boiled Egg water and Sourdough hooch.
