Cinnamon is commonly used in banana bread recipes, however, if you’re in a bind and a recipe calls for it, nutmeg is a great substitute for cinnamon. Although nutmeg is rarely used as a spice alone, it is often used in conjunction with other spices, especially cinnamon, as it has a similar earthy tone.
Nutmeg is incredibly versatile and is a great aromatic spice for both sweet and savory dishes. That being said, it will bring a nutty warmth to your banana bread that will contribute to its delicious, rounded flavor that will leave everyone wanting more.
However, you should be mindful that nutmeg can have a sharper and deeper flavor in comparison to cinnamon, so you might want to compensate for that with a dash of sugar. That being said, as a spice many people use alongside cinnamon, nutmeg will compliment your banana bread beautifully.