If you are using store-bought hummus, skip this step. To make homemade hummus, start by placing the tahini, water, and lemon juice in a food processor. Blend for 2-3 minutes until fluffy and creamy. Add the garlic, chickpeas, salt and cumin and blend again for another few minutes until perfectly pureed, scraping down sides if necessary to make sure all the ingredients are incorporated. If it looks thick, add another tablespoon of water and blend again. Hummus can be prepared two days ahead, stored in a sealed container, and refrigerated.