Soak chickpeas overnight with 1 tbsp baking soda. Drain.
Simmer chickpeas with 1/2 tbsp baking soda for 2–3 hours, adding water to double the volume. Be careful to not let all the water boil off. When done boiling, drain into a bowl to keep some of the cooking liquid for use later.
Use a food processor to blend chickpeas, tahini, lemon juice, garlic, and 1 tsp salt. Add cooking liquid as needed for a soft, creamy texture. Adjust salt to taste.
Serve warm. Garnish with paprika, parsley, red onion, and olive oil.