Soak cashews for up to two hours or overnight in filtered water.
Drain cashews and put into a high-powered blender.
Add water, vegetable stock, garlic power thyme, turmeric if using, and sea salt. Blend until very creamy. You may have to stop and turn on your blender several times for all the ingredients to incorporate but at a certain point everything will come together and blend smoothly. If you are using a Vitamix, work the mixture with the tamper. If the mixture is too thick to blend, add a little more vegetable stock or water.