When I cook chicken and save the bones I cover them with water and set them to slow cook until the broth is very dark. Sometimes I will add more water and cook it another 12 - 24 hours very slow. When you cook it long and slow when it gets cold it will set up like jelly - this is actually how jelly was once made.
Any way when it is super thick and rich I use 1 quart of broth and 1 quart of water - sometimes even 2 quarts of water.
Chicken stock is chicken broth. Don't add salt. Taste it before you pour a quart into a recipe. If you think it is much too rich cut it with some water.
When I cook down the bones and strain off the broth I put it into jars and put it in my freezer - because i do a huge roaster pan full and ofetn get 6 quarts or more. When i need it I take it out of the freezer and let it thaw. You can speed up the process by opening the jar and microwaving it for 8 minutes.
Use it in place of water in savory recipes.
Open a quart and use it to cook noodles in, toss in some slivers of chicken, chopped onion, carrots and celery and serve the best chicken noodle soup you ever tasted.
There are tons of uses for meat broths - to make gravey, to serve as simple clear soup for a person with a weak stomach recovering from an illness, to sip from a cup on a freezing day when you need something to warm your bones, to make mashed potatoes, to thin purees, to make your own baby foods.
Tons and tons of yummy uses.