Grandmother's Banana Bread

1/4 c. butter or margarine
1 c. sugar
2 beaten eggs
1 1/2 c. sifted flour
1/2 tsp. baking soda
1/2 tsp. salt
3 lg. ripe bananas, mashed

Cream butter and sugar together. Add eggs. Mix flour, baking soda and salt together. Add some of flour mixture, then mashed bananas, then the rest of the flour mixture. Bake in loaf pan at 350 degrees for 1 hour.