Celeriac Apple Onion Casserole

Dive into the flavors of fall with this elegant and comforting Celeriac Apple Onion Casserole, a dish that combines the earthy richness of celeriac (celery root) with the tart sweetness of fresh apples and the savory depth of caramelized onions. Infused with aromatic thyme, a creamy blend of heavy cream and stock, and topped with a golden, cheesy breadcrumb crust, this casserole is the perfect balance of hearty and light. It's an ideal side dish for holiday tables or a unique addition to weekday dinners. With layers of wholesome ingredients baked to perfection, this recipe showcases the art of combining seasonal produce with indulgent textures, creating a side dish that's both rustic and refined.

Nutriscore Rating: 62/100

Prep Time:20 mins

Cook Time:50 mins

Total Time:70 mins

Servings: 4

Ingredients

• 1 large (about 1 lb) celeriac (celery root)
• 2 medium apples (preferably tart, like Granny Smith)
• 1 large yellow onion
• 2 tablespoons butter
• 1 cup heavy cream
• 0.5 cup chicken or vegetable stock
• 1 teaspoon fresh thyme
• 1 teaspoon salt
• 0.5 teaspoon black pepper
• 0.5 cup grated Parmesan cheese
• 1 tablespoon olive oil
• 0.25 cup plain breadcrumbs
• 2 cloves garlic (minced)

Directions

Step 1

Preheat your oven to 375°F (190°C).

Step 2

Peel the celeriac and slice it into thin rounds, about 1/4 inch thick. Set aside.

Step 3

Core and slice the apples into thin wedges. Set aside.

Step 4

Peel and thinly slice the onion.

Step 5

In a skillet over medium heat, melt 2 tablespoons of butter. Add the sliced onion and sauté for 10 minutes, stirring occasionally, until golden and caramelized. Add the minced garlic in the last 2 minutes of cooking.

Step 6

In a small saucepan, combine the heavy cream, chicken or vegetable stock, thyme, salt, and black pepper. Warm over low heat, stirring occasionally, until combined. Do not let it boil.

Step 7

Lightly grease a 9x9-inch (or similar size) baking dish with olive oil.

Step 8

Layer one-third of the celeriac slices in the bottom of the dish, followed by one-third of the apple slices, and one-third of the caramelized onions. Repeat this process two more times to create even layers.

Step 9

Pour the warm cream and stock mixture evenly over the top of the layered ingredients.

Step 10

Sprinkle the grated Parmesan cheese evenly over the casserole.

Step 11

In a small bowl, mix the breadcrumbs with 1 tablespoon of olive oil. Sprinkle this mixture evenly on top of the cheese.

Step 12

Cover the baking dish loosely with foil and bake in the preheated oven for 30 minutes.

Step 13

Remove the foil and bake for an additional 20 minutes, or until the top is golden brown and the celeriac is tender when pierced with a fork.

Step 14

Let the casserole rest for 5 minutes before serving. Garnish with additional thyme if desired.

Nutrition Facts

Serving size	(1389.2g)

Amount per serving	% Daily Value*
Calories	1838.3

Total Fat 133.0g	0%
Saturated Fat 71.9g	0%
Polyunsaturated Fat 2.0g
Cholesterol 345.8mg	0%
Sodium 4380.7mg	0%
Total Carbohydrate 122.7g	0%
Dietary Fiber 19.8g	0%
Total Sugars 46.3g
Protein 30.8g	0%

Vitamin D 4.5IU	0%
Calcium 761.7mg	0%
Iron 5.8mg	0%
Potassium 2023.2mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 66.1%

Protein: 6.8%

Carbs: 27.1%