Get out your favorite big
bowl. Peel the bananas and mash them with a whisk until they are
quite mushy almost liquid. Cream in the brown sugar. Add the
yogurt or buttermilk, melted margarine or butter, egg and vanilla.
Beat until it is smooth and satiny. You may use electric beaters if
you prefer, but a whisk works really well. Add the salt, baking
powder and flour. Mix again until all is lump free and sort of
fluffy. Turn the mixture into a well oiled 9 by 13-inch rectangular
pan. Bake at 350° for about 40 minutes. The cake is done when it
is golden brown, the edges have pulled away from the sides of the
pan, and the top springs back when pressed lightly in the center.
Cool thoroughly and frost with chocolate or vanilla frosting. This is
a favorite for the lunch box crowd.
