Mix oat a buttermilk together in a bowl. Let soak for 10 to 15 minutes.
In a separate bowl mix together the flour, baking soda, baking powder, cinnamon and salt. Mix.
Add the eggs, sugar, butter or oil to the buttermilk and oats mixture. Mix until combined.
Add the dry mixture to the wet ingredients. Mix until everything is combined but be careful no to over mix.
Heat a large pan with a little oil or butter.
Once the pan is heated, pour 1/4 of the batter onto the pan. Let cook for about 3 minutes before flipping. I like to add the blueberries at this point, but you could just add them to the batter.
After the flip, let cook about 3 minutes on the other side.
Plate and serve! Top with maple syrup or whatever else you like on your pancakes.