Roughly chop the nuts by hand or in a food processor/blender. If you use a food processor, pulse until they've been chopped to a medium-fine texture, stopping before they turn into nut butter.
Add the dates, tahini, cinnamon, vanilla extract, sea salt, and water to a food processor and blend on high until creamy. (If the dates are hard, soak them in a warm water, and you can use the water you used for soaking again to make the dates mixture later)
To a large bowl, add all the chopped nuts and date mixture. And mix it until well combined.
Spread the granola evenly on a parchment-lined baking tray
Bake in the center rack of the oven for 25-30 minutes, stopping one or two times to stir and prevent burning.
When the granola is lightly golden, remove it from the oven and cool on the baking tray.
When fully cooled, transfer to an airtight glass container.
Notes
All nuts used in this recipe are raw and unsalted.
Tahini is sesame seeds paste. It is available in most stores. As I usually like to do it, you can make it at home. You roast the sesame seed and blend it until it is creamy in a high-power blender. It stays fresh for months in the fridge.