In a medium bowl, whisk together the oat flour, baking soda, spices, and salt.
In another bowl, whisk together the eggs, avocado oil, yogurt, coconut sugar, and vanilla.
Add the wet ingredients to the dry ingredients and mix well.
Fold in the shredded apples.
Cover the bowl and place in the fridge for 30 minutes to allow time for the oat flour to soak up some of the liquid.
Preheat your oven to 350 degrees and grease a muffin pan.
Divide the batter evenly between 12 muffin cups.
Bake for 25-28 minutes, until you can insert a toothpick and it comes out mostly clean with a few moist crumbs.
Let the muffins cool for 10 minutes before removing them from the pan.