This recipe calls for a small amount of cornmeal. Don't be tempted to leave it out because it adds a significant flavor and enhances the texture a bit.
The toothpick test isn't always a reliable way to tell when quick bread is done. If you are concerned that a loaf isn't really cooked through, insert a meat thermometer in the center of the loaf. The internal temperature should be 200 degrees and your meat thermometer should be free of batter. For muffins, fill muffin cups about 2/3 of the way full and bake at 376 degrees F. for about 25 to 35 minutes.