1. Preheat oven to 375ºF. Grease or paper line 12 muffin tins.
2. In a big bowl mix dry ingredients. Reserve.
3. In a medium bowl mix wet ingredients.
4. Pour wet ingredients over dry mixture and stir just until combined. Carefully add chocolate chips or raisins.
5. Pour dough onto prepared muffins tins. Bake 18-20 minutes until golden and fully baked.
6. Sprinkle if desired with pure cocoa powder.