Beat in eggs. Fold in sourdough starter. Add the rest of the ingredients. Bake in a large loaf pan in center of oven, preheated at 375 degrees F for 40 to 50 minutes or until done. Be sure to grease and flour the loaf pan before adding the batter.
Bread is done when inserting a toothpick and it comes out clean.
Turn out on wire rack to cool. Sourdough makes this a nice, moist banana bread and guests will be pleasantly surprised with the touch of gourmet flavoring. Add orange slices and squeeze juice out of leftover part of orange into pot. Leave crock pot on warm so guest can have refills all morning. Serve cider in mugs, with a dusting of nutmeg on each serving.