First, soak the nuts/seeds. Place them in a bowl or jar, cover with twice as much water and let it soak over night. Rinse them the morning after (To make the process faster, Instead of soaking overnight, you can place the nuts in a very hot water for 1-2 hours, the effect will be the same).

Then, place in a high speed blender together with 4 cups water and a pinch of salt. Blend for a couple of minutes.

Place a nut milk bag or cheesecloth over a mixing bowl and pour the blended mixture into it.

Strain the milk through the nut bag until only the pulp is left. Use your hands to squeeze out the last drip of milk. Add spices. (If you wish to add dates, blend a couple of soft dates with a little bit of milk in a blender until smooth. Then mix it with the remaining milk).

Transfer milk to a glass jar or covered bottle and refrigerate. Will keep for up to a few days. Shake well before drinking, as it tends to separate