Begin heating up your waffle iron.

In a large bowl, combine all purpose flour, baking soda, sugar, and salt. Whisk to combine.

Create a well in the middle of the flour.

In the center of the well, add eggnog, egg, butter, and vanilla.

Mix all ingredients in the bowl together until smooth.

In a separate bowl, beat egg whites until stiff.

Gently fold egg whites into batter.

Spray hot waffle iron with non stick cooking spray.

Carefully pour ½-¾ cup batter into waffle iron.

Cook until brown, about 4-5 minutes each, depending on your waffle iron.

Serve immediately or freeze and reheat when desired.