Preheat oven to 180ºC .
Cream brown and white sugars with butter until very light andfluffy. Add eggs, one at a time, beating well after each addition.
Stir in mashed bananas.
Sift flour with baking powder and salt. Mix milk and vanillatogether. Add each to first mixture alternately. Stir in the pecans.
Pour into a 25 cm well-greased tube pan. Bake in preheated oven for1- half hours, or until firm.
Place upside down on a cake rack; when cool, invert and turn outonto rack.