Banana Cake

1/2 cup butter
2 cups all-purpose flour, sifted
1 cup sour milk
1 teaspoon vanilla extract
1 1/2 cups granulated sugar
1 teaspoon baking powder
1 teaspoon baking soda
2 bananas, creamed
2 eggs, beaten

Cream butter and sugar together. Add well beaten eggs. To this mixture, add the sour milk alternately with the sifted flour, baking powder and the baking soda. Add creamed bananas and vanilla extract. Beat with an egg beater. Grease and flour a pan and bake cake at 350 degrees F for about 40 minutes. Cool before removing from pan.