Mash the bananas with a fork or chop them with a hand blender. Add oil, sugar, milk and eggs and stir well.
Mix the baking soda, flour, salt, nuts (and raisins) and fold into the banana mixture. Pour into a well-greased loaf pan (30 x 11 x 8). Cover with halved nuts. Bake at 200 degrees (hot air approx. 190 degrees) for 40 minutes (be sure to do a cooking test).
You can also use hazelnuts or almonds instead of walnuts. Instead of milk, water can also be used.
Very tasty with Gouda, honey or jams. But also tastes good without toppings.