Celery Root and Potato Puree

Serves 6
 
4 tablespoons unsalted butter
1 ½ pounds celery root, peeled, cut into 1/2-inch pieces 
1 ½ pound baking potato, peeled and cut into 1/2-inch pieces 
2 garlic cloves
​1 cup chicken stock
¾ cup heavy cream, warmed
3 Tbs fresh scallions, minced 

1. In a medium saucepan, combine the butter, celery root, potato, garlic, and stock and bring to a boil. Reduce the heat and simmer until tender, about 30 minutes. If stock remains, drain in a colander set over a bowl and reserve the cooking liquid. 
2. Mash the celery root and potato with a potato masher or put through a potato ricer. 
3. Add as much of the warmed cream and reserved cooking liquid as necessary to form a soft puree.  Season with salt and pepper.
4. Transfer the puree to a serving dish and top with the minced scallions.

 
Notes: For a low-carb option, use cauliflower in place of potato.