Complex sentence: But the term originally came about in New York; salsa dancing and music is a mixture of different styles originating from different countries and cultures, just like salsa or "sauce" in Latin American countries is a mixture of different ingredients.
Split into simpler sentences: But the term originally came about in New York; salsa dancing and music is a mixture of different styles originating from different countries and cultures. Just like salsa or "sauce" in Latin American countries is a mixture of different ingredients.