Nothing makes me happier than "using" up an ingredient that I have left over from another recipe. In the gumbo I made on Saturday, I used left over chicken broth. For the lemon cake I used buttermilk from last week. Today I finished off a container of sour cream in this Sour Cream Banana Bread. It is a very easy recipe with a nice cinnamon flavor and crunchy, brown crust. I added walnuts because I like nuts in my banana bread. I have already had two pieces and it is not even cool yet. Must give the rest away!