Velvet Waffles - cooking recipe

Ingredients

2 c. plain flour
3/4 tsp. salt
2 Tbsp. sugar (if desired)
3 eggs, separated
1/2 c. oil
3 tsp. double-acting baking powder or 4 tsp. phosphate or tartrate baking powder
1 3/4 c. milk

Preparation

Sift flour.
Measure.
Resift 3 times with baking powder, salt and