Nutritional Yeast (or nooch as it’s sometimes called) is cultured and deactivated yeast. Which means they let the yeast feed on something for a few days, heat it, then wash it, dry it and package it.
Nutritional Yeast has a cheesy, tangy flavor that is perfect for boosting flavor. It is available in a few sizes of flake. The small flakes are best in creamy sauces or a Vegan Mac N Cheez, while the large flakes are great for sprinkling over popcorn or your favorite snack.