Preheat oven to 350 degrees.
Combine all dry ingredients in a large mixing bowl. Set aside.
Whisk together all wet ingredients in a medium mixing bowl.
Pour wet mixture into dry mixture and fold until blended. Add raisins and/or nuts, if desired.
Pour batter into a loaf pan or 4 mini loaf pans lined with parchment paper.
Bake for 45-50 minutes for one large loaf or 30 minutes for 4 mini loaves, or until toothpick inserted in the middle comes out clean.
Let cool for 10 minutes, remove from pan, and let cool completely.