In a medium bowl combine the flours, baking soda,
baking powder, cinnamon and salt.
In the bowl of an electric mixer beat the butter,
granulated sugar, and brown sugar until creamy,
about 2 minutes. Add the eggs and the yolk, one
at a time, beating well after each addition. Add
in the vanilla. Gradually beat in the flour
mixture. Stir in the chocolate chips. Wrap dough
in plastic wrap and refrigerate for at least 24
hours but no more than 72 hours. Remove the dough
from the fridge and let sit at room temperature
for 10 minutes before shaping.
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