Add lemon juice and tahini to food processor and blend together for 30 seconds- 1 min, stopping once to scrape down the sides.
Add olive oil, salt, and cumin and process for another 30 seconds.
Add garbanzo beans and process for a minute, stopping to scrape down the sides.
If texture is too thick (it almost certainly will be) slowly add 1-3 T of water while the processor is running until desired consistency is reached.
Transfer to bowl and drizzle with olive oil and sprinkle with a pinch of paprika.
Note
A food processor works better here, since the two ingredients you use in the beginning are in small quantities.
For an even creamier texture, you can peel all the skins off the garbanzos when you’re rinsing them. I usually don’t do this because it takes too long, but feel free to try it out if you have and extra 5-10 min!