Melt some butter (or other oil) in a cast iron skillet over medium heat. This will preheat your cast iron to get it ready to make the pancakes, cause you want it nice and hot before you put your batter in so they don't stick.
Add all the ingredients, except the baking soda, to a medium-size mixing bowl. Stir until everything is well combined.
Add in the baking soda and mix it up. You will notice the batter will double in size. Super cool! And yes, totally normal!
Start pouring batter into the hot skillet. I just use my big stainless steel mixing spoon and eyeball it. You'll get a feel for how big you can make them and have them still easy to flip.
Let them cook for a couple of minutes or until you see bubbles in the batter. Flip and cook for an additional 1-2 minutes or until golden brown and cooked through.
Serve right away with your favorite pancake toppings.