Thoroughly mix the three cups of Bisquick with four tablespoons of cornstarch in a mixing bowl until you reach a smooth-like flour consistency. Add seven tablespoons of confectioner’s sugar and two teaspoons of baking powder to the bowl, sifting until the dry ingredients are well blended.
In a separate bowl, whisk together two and a half cups of milk, eight tablespoons of melted butter, two teaspoons of vanilla, and the yolks of two large eggs. Continue whisking until well combined.
Using an electric mixer, beat four egg whites with one-half teaspoon of cream of tartar in a small bowl for approximately two minutes, or until stiff peaks form.
Pour the milk mixture into the dry ingredients and stir until well combined. There may be a few lumps, but don’t fret, it’s normal and they will dissolve in the cooking process. Over mixing will cause more gluten to develop, resulting in a more dense pancake rather than a fluffy one.
Gently fold in the egg whites, remembering once again not to over mix.
Grease a skillet using butter or nonstick cooking spray. Cook each pancake to the desired size and flip once bubbles form on the surface.
Serve with a generous amount of your desired toppings and enjoy.