Chop all of your vegetables into large chunks. They don't have to be perfect !

(This step is optional but helps maximize flavour): Heat the olive oil over medium heat in a large soup pot, Dutch oven, crockpot or slow cooker. Add the vegetables and saute until softened (about 5 minutes).

Cover the vegetables with 8 cups of water. Turn up the heat to medium-high until just under a boil. Cover and reduce the heat to simmer.

Cook for 50 minutes.

Strain the stock.