2 cups garbanzos
1/4 cup liquid from chickpeas
3–5 tablespoons lemon juice (depending on taste)
1 1/2 tablespoons tahini
2 cloves garlic, crushed
1/2 teaspoon salt
2 tablespoons olive oil
I usually use 2 lbs of garbanzos and so I have to adjust the recipe.
Here is a spreadsheet I made myself for doing this more easily.
If you don’t have LibreOffice, you can get it here.
I use bulk garbanzos, soak them overnight, and put them in the slow cooker with some garlic. Probably ~8 hours on low is sufficient.