Preheat oven to 425F and place cast iron skillet or dutch oven inside to heat while you make the batter
In a glass jar add milk, lemon juice, flax meal, and applesauce. Set aside for a few minutes. In a large bowl mix together corn meal, flour, sugar, salt and baking powder.
Stir to combine.
Melt coconut oil.
When oven has reached 425F, carefully remove iron skillet from oven. Place on a heat safe surface. Add a teaspoon of coconut oil to the skillet. Use a brush to grease the skillet. Working quickly so as to not lose too much heat, add the wet mixture and the melted coconut oil to the dry mixture, stir to combine.
Immediately pour batter into skillet. Add to oven. Reduce heat to 375F. Bake for 20 minutes or until toothpick inserted into the center comes out clean. Remove from oven. Cool on cooling rack for 10-15 minutes before serving.