Overnight soak. Place the dry chickpeas in a large bowl, add enough water to cover them by 1 inch, and let sit uncovered at room temperature for 20 to 24 hours. When ready, you should be able to break apart a chickpea with your fingers. Drain.

Mix. Place the drained chickpeas, scallions, garlic, parsley, olive oil, lemon juice, cumin, coriander, and salt in a large bowl and stir to combine.

Process. Transfer the chickpea mixture to a food processor fitted with the blade attachment. Pulse each batch until the chickpeas are finely chopped. The texture should be some what coarse like big grains of sands ;)

Shape the falafel. Scoop the falafel into 2 tablespoon-sized balls (a small ice cream scoop works well for this) and place on a parchment paper-lined baking sheet. The mixture should hold together enough to form round balls using your hands, though it might be slightly loose. If it doesn't stick together at all, mix in a little more flour until it does.

Fry. Gently lower at most 4 falafel at a time into the hot oil and fry until deep golden-brown, flipping them halfway through, 2 to 3 minutes total per batch. Check the coloraturas until it looks golden brown but not too dark. Remove the cooked falafel to a paper towel-lined baking sheet.