Complex sentence: Chocolate is New York City's leading specialty-food export, with up to US $234 million worth of exports each year, and with chocolatier entrepreneurs forming a "Chocolate District" in Brooklyn as of 2014.
Split into simpler sentences: Chocolate is New York City's leading specialty-food export, with up to US $234 million worth of exports each year. Entrepreneurs were forming a "Chocolate District" in Brooklyn as of 2014.