To soft boil the eggs, bring a deep saucepan filled halfway with water to a rolling boil. Lower eggs gently into the water with a slotted spoon. Cover the pan and remove it from the heat. Let stand for 13 minutes.
Remove eggs from the saucepan with a slotted spoon and place in a bowl. Allow to cool for at least 20 minutes in the refrigerator. Remove from refrigerator, crack and peel, and slice in half. Take the cooked yolks out and place them in a food processor.
To make the hummus, blend all of the ingredients (including the yolks) in a food processor, adding more or less water to adjust the consistency. Spoon the mixture into the cooked egg whites and garnish with green onion.