1.   Beat in yeast mixture and then remaining flour, switching to a sturdy spoon.

2.   Blend yeast mixture, salt, lemon and orange rind and cinnamon into egg mixture until smooth.

3.   Add the yeast mixture.

4.   Add yeast mixture, buttermilk and oil, and mix well.

5.   Add milk, butter, egg and vanilla to the yeast mixture.

6.   Add the milk, flour, butter, vanilla, salt, hazelnut extract and sugar to the yeast mixture.

7.   Add the yeast mixture, yolks and melted butter.

8.   Add the yolk to the yeast mixture, but save the white for later.

9.   Combine with dissolved yeast mixture.

10.   Just before cooking the waffles, whisk the eggs and the baking soda into the yeast mixture.