Sandwich slather. Salad binder. Bread-crumb adhesive. Dip base. These are just a few of the many uses for mayonnaise. Traditional mayonnaise is an emulsion of oil, acid (lemon juice or vinegar), and egg yolk. The yolk, apart from imparting flavor and richness, contains lecithins that stabilize the emulsion; that is, they help the oil and acid combine. But recently a number of egg-fr... read more