Separate your egg whites from the yolks, being careful to not get ANY yolks in the whites.
In the bowl of a stand mixer or with a hand mixer, whip your egg whites with 1 tbsp of the sugar until soft peaks form.
In a separate bowl, mix all other dry ingredients together. To the dry mixture add in the buttermilk, 3 yolks, and melted butter, mix until smooth.
Gently fold in the egg whites to the wet mixture, doing your best to not deflate all those nice air bubbles. The mixture should be quite fluffy!
To cook your pancakes, heat a griddle or skillet on medium heat.
Portion your pancakes onto your greased skillet or griddle, flipping when bubbles form on the top side. Cook for an additional 30 seconds until cooked through.
Serve immediately with your favorite toppings, enjoy!!