I did not measure carefully so i can't honestly say this wont thicken on its own, but having a problem with thickening I added a little flax seed & sorghum flour to thicken. Sorghum flour is non gluten. I also used almond milk & sesame oil instead of the oil suggested. I also added some sweetener in the form of coconut nectar but I would have used agave or another sweetener if it were as handy at the time. I did add extra salt to balance out the flavors. It turned out really good. I may try an oil free mayo next.