Sift dry ingredients.
Add oil, eggs and buttermilk to dry ingredients (don’t mix too long – just until dry stuff gets wet).
Add raisin bran.
Mix in large bowl; fill muffin cups 1/2 – 2/3 full.
Bake at 400 for 15-20 minutes (closer to 15). Batter will be thick.
Keeps in refrigerator for up to six weeks. Enjoy!