Complex sentence: A culinary tradition in Rhode Island is the "clam cake" (also known as a clam fritter outside of Rhode Island), a deep fried ball of buttery dough with chopped bits of clam inside.
Split into simpler sentences: A culinary tradition in Rhode Island is the "clam cake". The clam cake (also known as a clam fritter outside of Rhode Island) is a deep fried ball of buttery dough with chopped bits of clam inside.