Gratin Of Apples, Sweet Potatoes And Onions
A comforting baked dish featuring layers of tart apples, sweet potatoes, and onions, enhanced with creamy custard and aromatic spices—perfect for cozy family meals or special occasions.
Ingredients
- 6 tart apples (Pink Pearl or Granny Smith), cored, peeled, and sliced ⓘ
- 2 medium yellow onions, peeled and sliced ⓘ
- 5 medium sweet potatoes, peeled and sliced ⓘ
- 5 extra large eggs
- 1 cup heavy whipping cream ⓘ
- sea salt to taste ⓘ
- freshly grated nutmeg to taste ⓘ
- pepper to taste ⓘ
- 4 tablespoons butter, cut into bits ⓘ
Instructions
- Preheat oven to 350°F (175°C).
- Spray a baking dish with nonstick baking spray.
- Layer the sliced apples, onions, and sweet potatoes in the dish, alternating layers until all slices are used.
- In a bowl, whisk together the eggs, heavy cream, sea salt, freshly grated nutmeg, and pepper.
- Pour the custard mixture evenly over the layered slices.
- Dot the top with bits of butter.
- Bake uncovered for about 60 minutes, until the top is golden and the custard is set.
Tips & Substitutions
For a richer flavor, consider using a mix of sweet and tart apples, such as Granny Smith with Honeycrisp. If you want to reduce calories, you can substitute half of the heavy cream with milk or a plant-based cream alternative. Fresh herbs like thyme can add an interesting twist. Ensure the sweet potatoes are sliced evenly for even cooking.
Serving Suggestions
This gratin is a delightful side dish for roasted meats or a vegetarian main course when paired with a fresh salad. It pairs beautifully with Mama'S Candied Sweet Potatoes for a comforting meal. Top with fresh herbs or a sprinkle of cheese for added flavor. Serve warm to enjoy the creamy texture.
Storage & Reheating
Store leftovers in an airtight container in the refrigerator for up to three days. To reheat, place the gratin in a preheated oven at 350°F (175°C) until warmed through, about 20 minutes. You can also microwave individual portions, but the oven method will maintain the texture better.
Nutrition & Diet Analysis (per serving)
Each serving of Gratin Of Apples, Sweet Potatoes And Onions contains roughly 690 calories, with 11g protein, 92g carbohydrates, and 33g fat. It is an excellent source of vitamin C (94% of the Daily Value), dietary fiber (37% of the Daily Value), and vitamin A (26% of the Daily Value), and a good source of potassium and iron. Note that it is relatively high in sodium, at 1428mg per serving (62% of the Daily Value).
Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.
* % Daily Values based on a 2,000 calorie diet (FDA 2020).
Frequently Asked Questions
Can I prepare this gratin ahead of time?
Yes, you can assemble the gratin a day in advance. Cover it tightly with plastic wrap and refrigerate. Bake it just before serving, adding a few extra minutes to the cooking time as it will be cold from the fridge.
What type of apples work best in this recipe?
Tart apples like Pink Pearl or Granny Smith are recommended for their balance of sweetness and acidity, which enhances the dish's flavor. You can also experiment with other varieties like Braeburn or Jonagold for a different taste profile.
Can I make this dish vegan?
To make a vegan version, substitute the eggs with a flaxseed mixture (1 tablespoon of ground flaxseed mixed with 3 tablespoons of water per egg) and use a plant-based cream. Ensure the butter is replaced with coconut oil or another vegan butter alternative.
Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).