Prepare the Chickpeas: (Optional but recommended) Boil the canned chickpeas in water with a pinch of baking soda for 10 minutes. Drain and rinse with cool water.
Blend the Base: In a food processor, combine chickpeas, tahini, lemon juice, garlic, cumin, and salt. Process for 2 minutes until a thick paste forms.
Emulsify: With the motor running, slowly drizzle in the olive oil. Then, add the ice-cold water one tablespoon at a time until the hummus is light, airy, and ultra-smooth.
Plate: Spread the hummus into a shallow bowl. Use a spoon to create a deep circular well in the center.
Garnish: Fill the well with olive oil. Sprinkle parsley around the edges, then place the olives in the center.
Finish: Dust with sesame seeds and chili flakes. Serve at room temperature.