Heat an electric griddle or frying pan to 350 degrees.
Whisk together the egg whites and buttermilk in a small bowl. In another bowl, whisk the egg yolks with the melted butter.
Combine the buttermilk mixture with the egg yolk mixture in a large mixing bowl and whisk together until thoroughly combined.
Pour the liquid ingredients on top of the pancake mix. Using a whisk, mix the batter just enough to bring it together: don’t over mix.
Lightly butter the griddle. Wipe off thoroughly with a paper towel. (You can skip this step if you’re using a non-stick griddle).
Gently ladle the pancake batter onto the griddle. When bubbles begin to set around the edges of the pancake and the griddle-side of the cake is golden, gently flip the pancakes.
Continue to cook 2- 3 minutes or until the pancake is set and golden. Serve immediately. Makes 12 pancakes.