The best waffles

From: mom 

1 3/4 c flour

2 tsp baking powder 

3 tsp sugar 

1/2 tsp salt

3 egg yokes, beaten 

1/3 c oil

1 1/2 c milk

3 egg whites, beaten stiff

Mix dry ingredients. Combine egg yolks and milk. Stir in dry ingredients and add oil. Mix well. Fold in egg whites.