In a large bowl, combine the flaxseeds, chia seeds, pumpkin seeds, sesame seeds, hemp seeds, garlic granules, thyme, and salt. Add the hot water, and mix well. Allow to rest for 10 to 15 minutes until all the water has been absorbed.
Line a large baking tray with baking paper, transfer the mixture onto it, and using a spoon, spread it to be about 1/8 of an inch (0.3cm) thick. Try to keep an homogeneous size, and avoid making the end too thin, for best consistency.
Bake in the oven for 50 to 55 minutes, keep an eye on it in the last 10 minutes. We want slightly golden seeds, but not burnt, which can happen quickly.
Once cooked, remove from the baking tray with caution, and allow to cool down completely before breaking apart with your hands.
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Notes
If you’ve noticed in the past that your oven cooks quicker on the front of the baking tray (which can be common), rotate your tray halfway through. All ovens are slightly different, so monitoring the crackers during the last 10 minutes is best to avoid burning.