Why does mayonnaise act and taste the same as butter if you fry it on a grilled cheese sandwhich?

Question

My grandad taught me this trick when I was like 7 and old enough to make a grilled cheese, and it was like magic to me, and is still really, I just thought about it and I really don’t know any food chemistry so naturally brought me to reddit to seek out my tasty answer.

In: Chemistry

Answer 1

Because it isn’t the dominant flavour of the sandwich.

You’re mostly tasting the cheese and bread, so mayo or butter will only slightly change the overall flavour.