For the pancakes: in a large bowl, combine flour, salt, sugar, cinnamon, baking powder, nutmeg and ginger.
In a medium bowl, combine egg yolks, butter, milk, and vanilla; add to flour mixture and mix briefly (batter will be lumpy). Beat egg whites until stiff peaks form; gently fold into batter. Gently fold in bananas and walnuts (reserve 1 tablespoon of walnuts for garnish).
Cook pancakes until golden brown on both sides.
Top with caramelized bananas and reserved walnuts. Serve with warm applesauce.
For the Bananas: Melt butter in a non-stick saucepan over medium heat. Add brown and white sugar and nutmeg; cook until sugars dissolve. Add bananas; cook until mixture thickens and bananas start to brown. (Optional: add 2 tablespoons of Kahlua and cook for 3-5 minutes longer, until thickened.).