Skin-Soften Boost : Place chickpeas in a saucepan with the baking soda and enough water to cover by a couple of inches. Bring to a lively simmer for 5 to 8 minutes until plumped and skins loosen. Drain and rinse under cool water for 30 seconds.
Citrus Bloom : In the processor, blend lemon juice, lemon zest, garlic, and salt until the garlic is finely minced. Let stand 10 minutes to mellow.
Tahini Silk : Add tahini and process until it tightens into a thick, creamy paste. Scrape down the bowl.
Ice-Whip Emulsion : With the machine running, drizzle in 4 tablespoons ice water (or aquafaba). Continue adding 1 tablespoon at a time until the tahini turns pale, airy, and glossy.
Creamy Fold : Add warm chickpeas, toasted cumin, and 2 teaspoons EVOO. Process, scraping as needed, until super smooth (about 2 minutes). If needed, pulse in another 1 to 2 tablespoons ice water for that restaurant-style flow. Adjust salt and lemon to taste.
Swoosh & Finish : Spread into a shallow bowl with broad swooshes. Drizzle with the remaining ½ teaspoon EVOO, dust with paprika or sumac, and scatter parsley. Serve with warm whole-grain pita, cucumber spears, and tomatoes.