Start with liquid broth. You can use beef, chicken, fish, or vegetable broth. I have about 2 gallons in this pot here.
Bring it to a boil, then turn the heat down to a simmer to keep the water boiling off. This process took about 6 hours for me. Make sure you keep stirring while you allow the ingredients to cook down.
Carefully pour the broth onto the dehydrator sheets.
Place in the dehydrator at 135 °F - 140 °F (57 °C - 60 °C). This is the longest part of the whole process.
After 24-48 hours, you should be able to lift the broth off the sheet all in one piece.
Flip this over, and place back in the dehydrator for another 24-48 hours.
When your broth looks clearish, and is easily breakable, it’s done.