When making yuca fries, count on about 12-14 fries per one pound of cassava root. This recipe calls for a 1 to 1 1/2 lb. root, so it will yield approximately 12-14 fries. Simply multiply the ingredients by however large your root is, or if you happen to buy more than one smaller root. Some of the roots can be as big as 2-3 lbs. The 1 lb. roots are among the smaller roots you’ll find in the markets.