This celeriac and parmesan puree is a creamy and flavorful side dish that pairs well with roasted meats or grilled vegetables. Celeriac, also known as celery root, is cooked until tender and then blended with parmesan cheese, butter, and cream to create a smooth and velvety puree. The parmesan adds a rich and nutty flavor, while the celeriac provides a subtle hint of celery. This puree is a delicious and unique alternative to mashed potatoes.