Preheat oven to 350F. Cream butter and sugar thoroughly. Add bananas, dates and pineapple. Sift dry ingredients three times; mix in nuts. Add alternately with sour milk. Bake 35-40 minutes in two 8 inch cake pans or one 9 x 12 inch pan. Cool on wire rack.
Melt butter in medium saucepan; add brown sugar. Boil over low heat 2 minutes, stirring constantly. Add milk, continue stirring. Add sifted confectioners sugar. Beat after each addition. Add nuts or press into sides of cake. Ice cake.
Cajun Country -- New Iberia, Louisiana