Prepare the chickpeas:
If desired, remove the skins from the chickpeas for a smoother texture. This step is optional but will result in a creamier hummus.
Blend the base ingredients:
In a food processor, combine the tahini, olive oil, lemon juice, garlic, cumin, and salt. Process until smooth and creamy, about 1 minute.
Add the chickpeas:
Add the chickpeas to the food processor and process for about 2 minutes, stopping to scrape down the sides as needed.
Adjust the texture:
While processing, slowly add the reserved chickpea liquid or cold water, 1 tablespoon at a time, until the hummus reaches your desired consistency.
Taste and adjust:
Taste the hummus and adjust the seasoning with more salt, lemon juice, or garlic if needed.
Serve:
Transfer the hummus to a serving bowl. Drizzle with olive oil and garnish with paprika, parsley, or sesame seeds for added flavor and presentation.