Begin by preheating your oven to 350°F/175°C and grease a 9-inch cast iron skillet or baking pan with olive oil.
Mix the milk and apple cider vinegar together in a small bowl and set aside to let it curdle (this is a quick buttermilk).
1 ½ cups milk, 1 tablespoon apple cider vinegar
In a large bowl, whisk together the dry ingredients.
1 ½ cups gluten-free all-purpose flour WITH xanthan gum, 1 ½ cups gluten-free cornmeal, 2 teaspoons gluten-free baking powder, ½ teaspoon baking soda, 1 teaspoon salt
In a separate bowl, whisk together the wet ingredients, beginning with the honey and apple sauce, and then add the eggs, butter, and the milk and vinegar mixture.
3 tablespoons honey, ½ cup unsweetened apple sauce, 2 large eggs, 4 tablespoons unsalted butter
Make a well in the dry ingredients and pour the wet ingredients into it.
Mix them together until they are just mixed. A little lumpy is okay.
Pour the mixture into your prepared cast iron skillet.
Bake for 30-35 minutes, until it is golden on top and a toothpick comes out clean.
Allow it to cool for 10 minutes (if you can wait!) to make it easier to slice, and then enjoy with some extra butter and honey.