In the food processor on the high speed mix chickpeas, onion, garlic, falafel spice mix, baking soda and flour. Stop from time to time and scrape the walls of the food processor bowl with the spatula.
Continue mixing until all ingredients are incorporated and you reach a smooth consistency.
Make 6 patties and set aside.
Preheat the grill or a large skillet.
Brush the patties with olive oil and place it on the grill or pan.
Grill or fry the patties for about 7 minutes on each side.
For the Tahini Sauce
Place tahini paste in the mixing bowl.
Add garlic, lemon juice and salt.
Whisk it until smooth consistency.
Add water little bit by little bit to thin the texture.
Stop when you reached the consistency you like, check for seasoning.
For the Falafel Spice Mix
Mix all the ingredients together in a small mixing bowl.
To Arrange a Burger
Place a burger bun on the grill.
Grill it for about 2 minutes until you can see the grill marks.
Put a leaf of lettuce on the bun.
Place a tablespoon of tahini sauce over the lettuce.
Put a falafel patty after. Followed by tomato, chopped parsley and few slices of pickles.