Banana Bread

This is from the Dinnerbell Bakery & Banquets restaurant in Montana.

3/4 c. margarine
1 1/2 c. sugar
1 tsp vanilla
1 tsp soda
1/2 c. buttermilk or sour milk
2 eggs, beaten
1 1/2 c. mashed bananas
2 c. sifted flour
3/4 tsp salt
3/4 c. chopped nuts

Cream margarine and sugar. Blend in bananas, eggs and vanilla. Sift flour, soda, salt and then add to banana mixture alternately with buttermilk, mixing well after each addition. Add nuts, if desired, and mix.
Pour into greased 9x5x3 loaf pans.
Bake at 325 for 1 1/4 hours