If you’re looking for a hearty side dish, this potato gratin is just what you need! Packed with simple flavors and made with a few ingredients, it’s a comforting dish that can please almost anyone at the table.
This recipe solves weeknight meal indecision by delivering a comforting, easy-to-make side that uses pantry staples, feeds a crowd, and reheats well.
Sometimes, I struggle to find recipes that my family can enjoy together. With my diabetes and my family’s gluten allergies, it can be tricky to please everyone. This potato gratin is not only delicious but also keeps everyone’s dietary needs in mind.
This recipe is super easy to follow and takes about 20 minutes of prep time, with a total of around 1 hour and 30 minutes to cook. The result? Tender, cheesy potatoes that are never watery. Plus, using a foil cover helps prevent burning, so you can focus on other parts of your meal.
If you love trying out new flavors, you’ll have fun with this dish! If you want another veggie option, check out my Loaded Vegetarian Bibimbap Recipe for a colorful twist.
Why You Will Love This Recipe
- Comforting Texture : This gratin has a creamy and cheesy layer that nicely contrasts with the soft, tender potatoes. It’s like a warm hug on a plate.
- Flavorful Herb Boost : Fresh herbs really elevate the dish, offering a burst of flavor. You can switch them up depending on what you have handy, which keeps things interesting.
- Convenient Make-Ahead : You can easily prepare this dish in advance. Just pop it in the oven when you’re ready, making it a breeze for any occasion.
- Easy Storage : Leftovers store well in an airtight container, so you can enjoy the cheesy goodness for a few more days without any fuss.
Creamy French Potato and Onion Gratin
- Prep Time: 20 minutes
- Cool Time: 0 minutes
- Cook Time: 90 minutes
- Total Time: 1 hour 50 minutes
- Yield: 8 servings 1x
- Category: Side Dish
- Method: Baking
- Cuisine: Vegetarian
- Diet: Vegetarian
Description
A creamy and flavorful Spring Onion Potato Gratin that’s perfect as a side dish or main course.
Ingredients
- 2 russet baking potatoes, washed and peeled (about 450g)
- 1 medium onion, thinly sliced (about 150g)
- 1 tsp salt (6g)
- fresh cracked black pepper to taste
- 2 cups shredded sharp cheddar (about 200g), divided
- 1 cup heavy cream (240ml), divided
- 3 Tbsp fresh marjoram, oregano, or thyme leaves, plus for garnish
- 2 Tbsp butter, cut in pieces (30g)
- 1/2 tsp fresh black pepper (2g)
Instructions
- Prep Your Dish: Start by layering the sliced potatoes and spring onions in your baking dish. Aim for a pretty arrangement to make it inviting. Layering helps each slice soak up flavors, but do not overcrowd the dish to achieve a golden top.
- Mix the Cream: Whisk your cream, salt, and pepper in a bowl until it is smooth. This mixture ties everything together, so ensure it is well blended without lumps for a consistent gratin.
- Pour & Spread: Pour the cream mixture evenly over the potatoes. Gently spread it around with a spatula for even coverage. Look for the cream to pool between the layers, signaling a delicious outcome. Avoid pouring too quickly to ensure proper distribution.
- Cover & Bake: Cover the dish with foil and place it in the oven. Bake until the potatoes are tender and the aroma fills your kitchen. This steaming step is crucial for ensuring fork-tender potatoes. Skipping the foil could result in a dry gratin.
- Uncover & Broil: After baking, remove the foil and broil for a little longer to develop a crispy top. Watch closely during this step to prevent burning.
- Check Doneness: Use a knife to check the potatoes; it should slide in easily. If they are still hard, cover again and bake further while checking every ten minutes.
Notes
- Storage Tips: Store leftovers in an airtight container in the refrigerator for up to 3 days.
- Expert Tips: If your gratin is not browning sufficiently, increasing the oven temperature slightly during the last fifteen minutes can help achieve a golden top. If you notice that potatoes are still hard after cooking, cover with foil and continue baking, checking every ten minutes. If the gratin appears too watery after baking, reduce the cream next time or allow it to bake longer uncovered for thickening.
- Reheating Instructions: Reheat in a preheated oven at 350 degrees F for about 15-20 minutes or until heated through.
- Serving Suggestions: Serve with a crisp green salad and Chardonnay, or pair with roasted meats or poultry for a hearty meal. Top with fresh herbs before serving for added color and flavor.
- Recipe Variations: Replace cheddar with Gruyere for a different flavor. Add sautéed mushrooms for an earthy note or incorporate other vegetables like zucchini or carrots. Experiment with a blend of different cheeses for unique taste experiences.
- Ingredient Notes: When selecting potatoes, ensure they are firm and free of blemishes. Substitute heavy cream with evaporated milk for a lighter option, but note that the sauce will be thinner and more watery. If using onions, thinly sliced fennel can be an alternative for variation.
Nutrition
- Serving Size: 1 serving
- Calories: 289
- Sugar: 2g
- Sodium: 510mg
- Fat: 23g
- Saturated Fat: 14g
- Unsaturated Fat: 0g
- Trans Fat: 0g
- Carbohydrates: 12g
- Fiber: 1g
- Protein: 9g
- Cholesterol: 69mg
Recipe Tips
- If your potatoes seem hard after the suggested cooking time, covering them with foil and continuing to bake while checking every ten minutes can help.
- When you notice the gratin not browning as much as you’d like, increasing the oven temperature slightly during the last fifteen minutes can help achieve that golden top.
- If the finished dish appears too watery, reducing the cream used next time or allowing extra time uncovered in the oven should assist in thickening it.
- For a creamier texture, consider using only half the cream required while increasing the volume of shredded cheese; it can make a delicious difference.
- If you want to adjust flavors, trying fresh herbs like rosemary or thyme in different proportions can create unique taste variations worth exploring.
Serving Suggestions
Pair this spring onion potato gratin with a crisp green salad and a glass of Chardonnay. It complements roasted meats or poultry for a hearty meal.
You can also use this gratin to accompany grilled fish, sautéed vegetables, or as a base for a layered casserole. Consider serving it alongside savory dishes like braised short ribs or herb-marinated chicken.
Top the gratin with fresh herbs before serving for added color. A drizzle of balsamic glaze adds a nice touch to the presentation.
Recipe variations
- You can use sweet potatoes instead of russet potatoes for a slightly sweeter flavor and a vibrant color.
- Add 1 teaspoon of garlic powder or a pinch of nutmeg for a warm, aromatic touch in your gratin.
- Either use fresh thyme or replace it with dried oregano for a different herbal accent that complements the dish nicely.
- If you’re cooking for a larger gathering, consider increasing your ingredients to 4 russet potatoes, 2 cups of cream, and 3 cups of cheese.
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How to Store?
To keep your spring onion potato gratin fresh, follow these storage tips:
Refrigeration: Store gratin in an airtight container in the refrigerator for up to 3 days. This method prevents spoilage.
Freezing: Wrap gratin tightly in aluminum foil or plastic wrap, then place in a freezer bag. Freeze for up to 2 months. To serve, thaw overnight in the refrigerator.
Reheating: Reheat gratin in the oven at 350°F until heated through. This retains texture and flavor for best results.
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If you enjoyed this Spring Onion Potato Gratin or any other recipe on my blog, please leave a ⭐ star rating and let me know how it went in the comments below. I appreciate taking time to read about this recipe, thank you!
