Mayo Is The Secret Ingredient That Makes Banana Bread Very Moist
By Grace Allison
Mayonnaise in cake is a well-known way to inject and preserve moisture. When used in banana bread, it also adds a springiness that's hard to get any other way.
The sweet notes of banana aren't lost to the added savoriness, and when you consider mayo as emulsified eggs and oil, adding it to your banana bread doesn't seem so daunting.
Replace one egg with three tablespoons of mayonnaise. Since mayonnaise already contains oil, you can usually omit it from the banana bread recipe entirely.
It's easiest to beat the mayonnaise into a separate bowl with the other wet ingredients, like banana, water, and vanilla extract, before folding it into the dry items.
To avoid a dry block or a soggy mess, cook the bread until a toothpick comes out clean after insertion. The result should be a moist, airy, deliciously light banana bread.
Mayonnaise is typically salty, so the more you add, the saltier your banana bread will be, but adding cinnamon, nutmeg, or ground cloves will offset any egg flavor from the mayo.