If you like the flavor of celery, you’ll love
celeriac! It makes a good substitute for mashed potatoes. It is more similar to mashed potatoes in texture than mashed cauliflower, in my opinion.
Celeriac originated in southern Europe, and was introduced here in the 18th century. It contains only 30 calories per 4oz and is a good source of fiber and potassium. It is available late September to April. Celeriac looks like a rough, creamy brown turnip with white flesh. The surface browns when cut, so dip in lemon juice to prevent this (you can omit this step if you don’t mind it browning a little). Cut into 1” chunks and boil or steam for about 20 minutes until soft, then mash with salt, pepper & a tablespoon butter or margarine (I used Smart Balance Buttery Spread). I find using an imersion blender gives it a nice smooth texture. One celeriac root is enough for 2 or 3 servings.
I really enjoy celeriac served with fish.