I tried mayonnaises from Asda, Morrisons, Tesco, Lidl, Sainsbury's, Aldi and M&S to see how they compared to original ...

Feel free to use commercial, no-sugar-added sweet pickle relish if you don’t want to go to all that trouble. Sarah’s Sauce calls for Worcestershire sauce, which surprised me.

The sugar-free mayo is the country's fifth-largest by market share, Tuza said, behind Hellmann's and other Kraft Heinz and Unilever brands.