Why Is Mayonnaise Always Tastier At Restaurants?

Have you ever wondered why a sandwich tastes so much better at your local deli than when you make it at home? Possibly it's because they're using a different kind of mayo.

Restaurants use a type of mayo called "heavy duty" or "extra heavy," and the key difference between their mayo and the kind you find in the grocery store is all about the eggs.

This version of the condiment uses more egg yolks, resulting in a richer umami flavor and making everything from sandwiches to salads taste that much better.