Complex sentence: The cassava root produces a very powerful starch which is key to the size and texture of the Pão de Queijo; unlike other types of bread, the recipe calls for no leavening of any kind.
Split into simpler sentences: The cassava root produces a very powerful starch which is key to the size and texture of the Pão de Queijo. Unlike other bread the recipe calls for no leavening of any kind.