Preheat the oven
to 200C/400F. Then line a 23 x 13cm/9 x 5in loaf tin with
greaseproof paper and then grease the paper.
Sift the
flour, salt and baking powder into a mixing bowl.
Add the cornmeal or polenta and stir to blend. Make
a well in the centre. Whisk together the milk, eggs,
melted butter and margarine. Pour the mixture into
the well. Stir until just blended; do not over mix.
With a fork, mash
the bananas to a puree, then stir into the mixture.
Stir in the vanilla essence and nuts.
Pour the mixture
into the tin and bake until a
skewer inserted in the centre comes out clean, about
45 minutes. Serve hot or at room temperature.