Heat the skillet or a wok for a minute on medium heat (Note 2).Add the sesame seeds and toast for about 5 minutes or until they start to turn light golden.Transfer to a baking tray and cool to room temperature.
PROCESS THE SESAME SEEDS
Place the cooled toasted sesame seeds in the food processor and pulse until it resembles a creamy runny paste. It should take about 10 minutes (Note 1).Scrape the sides of the bowl every 3 minutes or if you see that there are clumps of not processesed sesame paste on the walls of the food processor bowl.
Pour the tahini into a prepared clean jar and store in a dry area.
NOTES
Achieving the smoothest consistency of the tahini greatly depends on the food processor you will use. Please note that some food processors are just not strong enough to pulse for an extended period of time and overheat quickly (I melted the plastic on one!). In such a case, let it rest and cool down before continuing. For the timings given in this recipe, I used Magimix 4200XL food processor. Please adjust the times according to your food processor.
I used a large cast-iron wok in this recipe as it retains the heat really well, and I find that the stirring is more consistent as it moves more sesame seeds all around the wok. The seeds are toasted more evenly in the wok compared to when toasted in the classic flat bottom skillet.