It seems that every recipe for hummus I see uses around the same proportions and results in the same thick, gloppy hummus. It doesn't necessarily taste bad, but it's just so thick, unlike the kind you get premade from the store which is smoother. Is it just oil? I've tried upping the oil but it seems like you have to add A LOT to get it to make a difference. Does anyone have suggestions, or recipes for smoother, thinner hummus?