1 tablespoon ground flaxseed
3 tablespoons water
1 cup oat flour
1 teaspoon baking powder
¼ teaspoon baking soda
¼ teaspoon salt
1 cup unsweetened almond milk
1 teaspoon apple cider vinegar
1 tablespoon coconut oil, plus more for greasing the skillet
1 tablespoon vanilla extract