Preheat oven to 350

With a wooden spoon mix butter into the mashed bananas in a large mixing bowl

Mix in the sugar, egg and vanilla

Sprinkle the baking soda and salt over the mixture and mix in

Add the flour last

Pour mixture into a buttered loaf pan

Bake for an hour then cool on a rack

You can always add walnuts as well, sometimes I'll add raisins and sprinkle the top with oats