Complex sentence: The children of the owners did not like traditional casatta cake, made with sweetened ricotta chocolate chips and candied fruit, so using what they had in the bakery, Tomasso LaPuma created what was to become the Cleveland casatta cake.
Split into simpler sentences: The children of the owners did not like traditional casatta cake, made with sweetened ricotta, chocolate chips, and candied fruit. Using what they had in the bakery, Tomasso LaPuma created what was to become the Cleveland casatta cake.