In a mixing bowl, combine flour, salt, baking powder and baking soda

In another bowl, combine milk, lemon juice, ad egg yolk. Add dry flour mixture and stir gently. Do not over mix.

Beat egg white until stiff peaks form, add sugar and blend for a second longer.

Gently fold in egg whites into flour/egg mixture, paying special care not to over mic.

Cook in a non-stick slightly greased waffle iron.