Soak the garbanzo beans for 8 hours, rinse, drain and set aside.Add all the ingredients except oil and sesame seeds to food processor and process to make a slightly coarse mixture.
Transfer to a bowl, add sesame seeds and mix. At this pont it is okay to refrigerate if making falafels later.
Add a pinch of baking soda, mix and make balls about one to one and a half tablespoons of mixture. This makes about 24.
Heat oil in a pan on medium flame. Carefully drop the balls, 6 to 8 (or more) per batch depending on the size of pan. Fry till golden brown, flipping them. Repeat frying the rest of the falafels.
Remove from oil,. Drain the falafels in paper towel. Switch off flame when deep frying is all done.
Serve with hummus ot tzatziki.