Preheat oven to 400 degrees. Line a baking sheet with parchment paper or lightly oil a small cast iron skillet. Set aside.
Combine milk and vinegar and set aside for 5 minutes to make "buttermilk".
In a bowl combine flours, salt, baking soda, cinnamon and raisins and mix thoroughly.
Add the buttermilk to the flour mixture and stir with a wooden spoon.
Transfer to a floured surface. Using floured hands knead a few times and form into a round loaf. The dough will be wet and sticky, but only add enough flour to form the round.
Transfer loaf to prepared baking sheet or skillet.
Bake until golden brown and cooked through, 30 - 40 minutes.
Allow to cool for 5-10 minutes before transferring to a wire cooling rack.
Slice and enjoy while it's a bit warm, room temperature or toasted with a smear fo vegan butter.