Sounds strange, right? Actually, they're delicious! The subtle hint of banana doesn't really add sweetness, only an exotic taste. You must try this! This makes about four normal-people servings, or two hungry people servings.
Peel potatoes. Place in a large pot of salted cold water. Bring to a boil.
Boil 25 minutes, or until tender. They should provide no resistance when poked with a fork.
During the last five minutes of boiling, peel your banana. Take a bite (a whole banana is a little overwhelming, but a banana with a big bite taken out does just right). Drop the rest of the banana in the water with the potatoes and let it boil with them for the last five minutes. This softens it.
Drain the potatoes and banana and place in a large bowl.
Add the butter and a little half and half and cream with a hand mixer. Add half and half as needed to get a creamy texture.
Add salt and pepper to taste. These are great with lots of fresh cracked black pepper.