The correct spelling of the word Mazzarella is often debated due to the various ways it can be pronounced. In IPA phonetic transcription, it can be spelled as /mæzəˈrɛlə/ or /mɑːtsəˈrɛlə/. The first pronunciation features a short "a" sound while the second features a longer "a" sound. The double "z" and "ll" are pronounced with a buzzing "z" sound. Overall, the correct spelling of Mazzarella should include the double "z" and "ll" to accurately represent the pronunciation.