- Place the flour, sugar, baking powder and salt in a bowl and whisk to combine. Place the egg yolks, milk and vanilla in a second bowl and beat to combine. Mix the dry ingredients into the wet until just combined and a batter is formed.
- Place the egg whites in a bowl and beat until stiff peaks form. Whisk quarter of the beaten egg whites into the batter. Now carefully use a spatula to fold the remaining egg whites into the batter.
- Preheat the oven to 200˚F. Preheat your waffle iron. (The waffle iron used when testing the recipe had a setting range of one to five and was set at three and half.) When the waffle iron is hot, spray the cooking surface lightly with vegetable spray. Spoon 1/2 cup of batter into each waffle slot, spreading the batter so it reaches to the corners. Close the iron and cook the waffles about 3 minutes, or until golden brown and cooked through. Set the cooked waffles on a baking sheet and keep warm in the oven until the rest are cooked.
- Serve waffles and let diners top them to taste with dulce de leche, chocolate chips and toasted nuts.
Note: You can warm the dulce de leche in the microwave or in a small pot until it becomes fluid. To toast nuts, place in a non-stick skillet set over medium heat. Heat and swirl the nuts until lightly toasted, about 4 minutes.
Recipe Options: Instead of accenting these waffles with dulce de leche, chocolate and nuts, top them in more traditional ways with maple syrup and butter, or with fruit and whipped cream or thick yogurt.