75 Delicious Treats for Your Low-Carb Diet. Chaffles are the newest craze in the keto community. Why are people obsessed? Simplicity and versatility. Chaffles have only two ingredients and are neutral-tasting bread substitute that can be used for sandwich bread, a base for pizza, waffles, a low-carb dessert, or made sweet or savoury like a fat bomb. Written by beloved keto author Martina Slajerova, this guide shows readers how to create chaffles for the perfect low-carb snack, dessert, sandwich, or low-carb bread substitute.