Prepare the Oat Flour: Add the 2 cups of rolled oats to a high-speed blender. Secure the lid and blend on high for 30-60 seconds. Stop and scrape down the sides if needed. Continue blending until the oats have transformed into a fine, powdery flour. This step is critical for a smooth, non-gritty pancake.

Combine All Ingredients: To the oat flour in the blender, add the milk, eggs, maple syrup, baking powder, vanilla extract, cinnamon, and salt.

Blend the Batter: Place the lid back on the blender and blend on a medium-high setting for about 30 seconds, or until the batter is completely smooth and homogenous. You should see no lumps or flecks of unmixed ingredients.

Rest the Batter (The Most Important Step): Pour the finished batter from the blender into a pouring jug or a bowl. Let it sit undisturbed on the counter for 10 minutes. During this time, the oat flour will fully hydrate and absorb the liquid, and the baking powder will begin its work. The batter will thicken considerably. Do not skip this step; it is the secret to fluffy, tender pancakes rather than thin, dense ones.

Heat and Grease the Pan: While the batter is resting, place a large non-stick skillet or a griddle over medium-low heat. It’s very important not to use high heat, as the outside of the oatmeal pancakes will burn before the inside has a chance to cook through. Add about ½ teaspoon of coconut oil or butter and swirl to coat the surface.

Cook the Pancakes: Once the pan is hot, pour about ¼ cup of batter onto the skillet for each pancake. Keep them spaced apart so they are easy to flip. Cook on the first side for about 3-4 minutes. You will know they are ready to flip when the edges look dry and set, and bubbles start to appear on the surface and pop.

Flip and Finish Cooking: Using a thin, flexible spatula, carefully flip the pancakes. Cook on the second side for another 2-3 minutes, until they are golden brown and cooked through. The pancake should feel slightly firm to the touch when gently pressed in the center.

Serve or Keep Warm: Transfer the cooked pancakes to a plate. To keep the batch warm while you cook the rest, you can place the plate in an oven set to its lowest temperature (around 200°F or 95°C). Serve immediately with your favorite toppings and enjoy!