Preheat oven to 425F.
Line a 12 count muffin tin with cupcake liners and set aside.
Mix all bran and milk in a small bowl and let sit for 10 minutes.
While waiting, sift together flour, baking soda, baking powder and salt in a medium mixing bowl. Mix well.
In a third bowl, mix brown sugar, oil, egg, lemon juice and raisins.
Mixing by hand, add the bran mixture and oil mixture to the flour mixture.
Pour batter in lined muffin tin. Fill each cup 2/3 full.
Baker at 425F for 15-18 minutes. Or until toothpick comes out clean.
Allow to cool 2 minutes in tin before serving!
Cool completely before storing leftovers in an air tight container at room temperature for 3-4 days or in the fridge for up to 2 weeks!