Its the ultimate hack for your best grilled cheese ever.
And no, it’s not tomatoes or bacon.
The secret to yourbest-ever grilled cheese?

Credit:Caitlin Bensel; Food Stylist: Torie Cox
Next time you make one, don’t smother your bread in butter like usual.
Instead, slather on the mayo; it’ll add a tangandcreate a perfectly crisp exterior.
Why Use Mayonnaise On Your Grilled Cheese?
So how do you avoid a barely toasted cheese melt or burnt sandwich with still-cold cheddar?
This often means going low and slow with the heat, and mayonnaise can quicken this process.
Unlike butter, which burns quickly, mayonnaise is an oil-based fat with ahigher smoke point.
Plus, you also can get away with using less to accomplish the same job as butter.
Which Mayonnaise Should You Use?
The only rule of thumb is that you must use a full-fat, traditional mayo.
How Do You Make Grilled Cheese With Mayo?
Basically, exactly the same way you’d make any grilled cheese.
Just slather the outside of each piece of bread with mayo instead of butter.
You also have the opportunity to add extra flavor to the crispy, brown exterior of your sandwich.
Or, blend a tablespoon or two of pesto into your mayonnaise mixture for bright herbal flavor.