Optional for fluffier pancakes. Stir milk of choice together with apple cider vinegar and set aside for 2 to 5 minutes.
In a large bowl, stir together oat flour, baking powder, ground cinnamon (optional) and a pinch of salt. Add maple syrup, oil, eggs and optionally vanilla extract.
Start mixing while gradually pouring in the milk (stirred with apple cider vinegar), until the pancake batter reaches a smooth consistency; do not overmix the batter. If necessary, adjust the sweetness level with more maple syrup. Optionally, place the batter in the fridge and let it rest for about 10 minutes.
Lightly coat a griddle with oil or butter and place over medium heat. Once hot, pour one scoop of batter into the pan. Cook your pancakes over medium heat until the underside is golden and bubbles begin to appear on the surface, then flip with a spatula and cook until golden.
Serve with your favorite toppings or store in the fridge for a maximum of 5 days.