1. Preheat oven to 450 degrees.
2. Place 1 tbsp of vegan margarine or butter on the bottom of an 8 inch cast iron skillet. Place skillet in oven and let it heat while you are mixing the other ingredients.
3. Mix dry ingredients: cornmeal, salt and baking soda.
4. In a separate bowl mix 1 tbsp lemon juice with 1 cup of almond milk (I used unsweetened).
5. Add soured milk and flax seed egg to the dry ingredients. Whisk all ingredients together.
6. Remove skillet from oven (Careful, it will be hot!). Pour the batter into the skillet and carefully return to the oven. Bake 20 minutes or until golden.