Grandma Tillie's Bakery April 24, 2010 at 7:20 PM. Here is a great explanation--it's all about the emulsion: Mayonnaise is an emulsion of vegetable oil in lemon juice stabilized by the molecule lecithin, found in egg yolks. Mayonnaise does not taste all that oily even though most of it is oil. This is because every molecule of oil is surrounded. horoscope cancer 2021
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