Place the bananas, eggs, oats, baking powder, vanilla, cinnamon, salt, and milk in a blender. Blend on high speed until the mixture becomes smooth and creamy.
Warm a non-stick skillet over medium heat and lightly grease it with coconut oil or butter.
Pour about 1/4 cup of the batter into the skillet for each pancake. Cook for 2–3 minutes, or until small bubbles start to appear on the surface.
Gently flip the pancakes with a spatula and cook for another 1–2 minutes, until golden brown and cooked through.
Repeat with the remaining batter, adding more oil or butter to the pan as needed.
Serve the pancakes warm with your favorite gluten-free toppings such as fresh berries, peanut butter, or a drizzle of maple syrup.