Celeriac Puree

French-style potato purees are very finely processed, and often incorporate copious amounts of butter, so the resulting puree is silky smooth. In this recipe, the addition of celeriac to the potatoes creates another layer of flavor. Traditionally, in classic French cooking, white sauces use white pepper instead of black, making the finished dish appear more refined. When we were children and would see pepper in a dish we would complain, often without tasting, that it was “too hot.” Sneakily, Mama started using white pepper to pull the wool over our eyes.