30-60 mins
Make-Ahead
Over 1 hour
Quick & Easy
Under 15 mins
Under 30 mins
Grandma Prudence’s Potato And Celery Root Gratin
A comforting and classic gratin featuring thinly sliced potatoes and celery root baked in a creamy sauce.
Total Time
90
Yield
6
Calories
320 cal
Difficulty
Easy
Cuisine
Holiday
(0 reviews)
What You'll Need
Equipment:
9x13 inch baking dish, Medium saucepan, Whisk, Vegetable peeler, Mandoline or sharp knife •
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Instructions
Preheat oven to 375°F (190°C). Grease a 9x13 inch baking dish.
In a medium saucepan, melt Butter over medium heat. Whisk in Flour and cook for 1-2 minutes, creating a roux.
Gradually whisk in Milk, stirring constantly to prevent lumps. Bring to a simmer, then reduce heat and cook for 5-7 minutes, or until sauce has thickened.
Remove from heat and stir in Nutmeg, Salt, and Pepper.
In the prepared baking dish, layer Potatoes, Celery Root, and Onion. Pour Sauce over the vegetables, ensuring they are well coated.
Sprinkle with Gruyere Cheese and Breadcrumbs.
Bake for 60-75 minutes, or until golden brown and bubbly. Let stand for 10 minutes before serving.
