Preheat oven to 350°F.
Mix flour, soda, salt, and spices in medium bowl.
Mix together butter and sugar, then mash in eggs and bananas.
Combine wet and dry ingredients, fold together until just mixed.
Optional: Fold in crushed nuts, chocolate chips, or other additions as desired.
Place in greased bread pan and bake for 60-65 minutes (until a toothpick inserted comes out clean).