Holidays are the time for baking and enjoying cookies and treats, and those with gluten sensitivities shouldn't have to miss out. Baking with flavor flours--oat flour, sorghum flour, teff, coconut flour, and nut flours, like almond and hazelnut--means that everyone can enjoy holiday treats, from the classic Chocolate Chip Cookie to the decadent Peanut Crunch Brownies. Alternative flours make these cookies and bars gluten-free. And rather than simply...