Peel very dark skinned bananas and mash thoroughly. Mix in sugar combined with baking soda and salt.

Add a the flour and eggs, alternating between the two, mixing well after each addition. Then mix in the buttermilk and oil.

Turn into two well greased 8" x 4" loaf pans. Let stand for 25 minutes. Bake in a very slow over, 250 degrees, for about 2 hours. Cool before turning from pan.