Grind oatmeal finely into powder.
Mix egg and unsweetened soy milk and whisk well until foamy.
Add cocoa powder, stevia, and baking powder. Mix to combine.
Add oatmeal powder and mix thoroughly to form a dough.
Lightly oil the pan, pour the batter, and cook over low heat.
When one side is cooked, flip and cook both sides until golden brown.