In bowl, beat eggs. Whisk in brown sugar and oil until thoroughly blended. Add sour cream, cinnamon, baking soda, baking powder, orange juice, mashed banana, walnuts and flour mixing well preferably by hand. Pour into oiled 12"x4"x4" loaf pan. Bake in 375 oven for 50 minutes and until done. Cool in pan on rack for 10 minutes. Loosen edges and turn out to complete cooling on rack. Wrap in foil or waxed paper. Recipe By : Little Mom