One of the ingredients listed is sour milk. I do this first, measuring my milk into the measuring cup and adding a few drops of lemon juice. You will also need 3 mixing bowls. One for wet ingredients, one for dry ingredients and one for mashing bananas.
Next measure out your dry ingredients. Flour, baking soda, baking powder and salt. The actual recipe calls for a lot of sifting. I don't do that. I have wondered over the years if all the extra steps in this recipe were to teach us all the techniques back in high school.
Preheat oven to 350 degrees
2 cups sifted flour
1/2 teaspoon baking powder
3/4 teaspoon baking soda
1/2 teaspoon salt
1/4 cup sour milk (add a few drops lemon juice to fresh milk to make it sour.)
1/2 cup butter or margarine
1 1/2 cups sugar
1 teaspoon vanilla
Sift together the flour, baking powder, baking soda and salt.
In a separate bowl mix butter, sugar, egg and vanilla. Beat until well mixed. Add milk and mix.
Mash bananas well and have them ready to add to the butter sugar mixture alternating with the flour. Stir only as much as necessary.
Pour mixture into a well greased pan and bake for 30-35 minutes. Remove from pan while still warm. Bread can be frozen to be served at a future date.