Banana Nut Bread

Does anyone else have the problem of their banana bread not cooking in the center?  Honestly, one time I kept my loaf in an extra hour and that middle section still never cooked.  I've tried mixing my dough more, mixing it less, different recipes... never cooks in the middle.  Well, this recipe from Wives with Knives sounds delicious (no baking powder, I hate baking powder in sweet breads) and claims to not fail... can't wait to give it a try.