Drain and rinse 2 15-ounce cans chickpeas, and then place them in a saucepan. Cover the chickpeas with water, bring to a boil, and simmer for 20-30 minutes. If any peels come off, scoop them out before you strain the chickpeas. Most canned chickpeas have already had the peels removed, but some will remain, and if you can get them out, then your hummus will be creamier.
Add 4 tablespoons lemon juice and 1 small or 1/2 of one large garlic clove to the food processor or blender and pulse until the garlic is finely minced. Let the garlic rest while the chickpeas are simmering.
To the lemon juice and garlic, add 1 cup tahini, 1 teaspoon ground cumin, 1 teaspoon fine sea salt, and 5 tablespoons ice water. Pulse a few times, then add the chickpeas. Process until roughly combined, scraping the sides as needed, then slowly pour in 4 tablespoons of extra virgin olive oil. Pulse a few times, then drop in 1 ice cube. Process for several minutes until you reach your desired consistency. If after 4 minutes you don't think it's creamy enough, you can add one more ice cube.
Make the loaded hummus
Spread the hummus on a large serving plate or platter.
In a decorative fashion, add the olives, cucumber, red peppers, tomatoes, red onion, and feta cheese.
Sprinkle the sumac or paprika, drizzle the extra virgin olive oil, and scatter the fresh herbs on top of the loaded hummus.
Notes
If you want a chunkier hummus with more texture, don’t process it for as long. Keep processing if you want a smooth, creamy dip.