Preheat the oven to 275°F.
In a large bowl, mix dry ingredients.
Add the broth and let sit for 1-2 minutes.
Stir the mixture with a fork until the seeds start sticking together, about 5 minutes.
Spoon the mixture onto a cookie sheet sprayed with olive oil spray and cover with wax paper.
Using a rolling pin, or drinking glass, roll the mixture flat and out towards the edge of the cookie sheet; remove and discard the top wax paper.
Bake for 1 to 1 1/2 hours, until crackers lift off the cookie sheet and crack apart easily.