In a large bowl, mash the bananas, sugar, oil, eggs and vanilla with a potato masher - don’t worry about getting all the lumps out. It will look sort of cottage-cheesy.
Add the flour, baking soda and salt and stir until almost combined; add any additions and stir just until blended.
Spread into a buttered 8”x4” loaf pan and bake for 50 minutes, until golden and cracked on top and springy to the touch.