Have ready the pancake skillet.
Combine 2 cups all-purpose flour, ½ teaspoon salt, ½ tablespoon baking powder and ⅓ cup sugar in a large bowl.
Mix 1 ½ cups buttermilk, 6 tablespoons unsalted butter and 3 egg yolks in another medium bowl.
With dry, clean beaters, beat the 3 egg whites until you have medium peaks (not completely firm, the tip falls a bit).
Add the milk mixture to the dry ingredients and mix together. Some lumps may remain.
Add beaten egg white in 2 additions, mixing with a spatula until combined but some small lumps of egg whites remain.
Heat the pancake skillet over medium heat and add a smidgen of butter.
Add ¼ cup batter to make each pancake. If you make several at a time increase the heat a bit.
When the pancake starts to have bubbles and begins to dry turn them over and cook for a minute or so.
Be careful not to burn them.
Serve immediately with fresh fruit, maple syrup, and whipped cream if you want.