Here's my recipe.
1 big can (or approx 4 cups) cooked garbanzo beans, liquid reserved
2-3 Tbsp lemon juice
2-3 Tbsp sesame tahini
1-2 Tbsp olive oil
2-3 cloves garlic, minced
1-2 tsp ground cumin and ground coriander, each
salt to taste
Process all ingredients in food processor until desired taste and consistency, adjusting spices and adding garbanzo cooking liquid as needed.
To make a chilpotle hummus, add 1-2 chiplotle peppers and approx 1 Tbsp of adobo sauce, omit ground coriander and use cilantro leaves instead.