I am trying to figure out how to make heavy mayonnaise. I have seen it in 1 gal plastic jars at a food warehouse, but it was like 20.00, more than I need and more than I want to spend. I know how to make mayonnaise but how do you make it heavy? I would like to try this on my potato salad to make the mayonnaise stick to the potatoes better. There is a potato salad in my area sold in stores called Grandmas Potato salad and it doesn’t seem to have much stuff in it. It is really good and tastes a lot like homemade, and I have a feeling they use heavy mayonnaise in it.