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Potato Leek Casserole – Potato Dauphinois Gratin

November 1, 2016 by Edyta 10 Comments

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Edyta
Author at Eating European
Recipe developer, photographer and the writer behind the Eating European food blog of European and Mediterranean healthy and delicious recipes
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Latest posts by Edyta (see all)
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Potato Leek Casserole is made with sliced potatoes, garlic, saute leeks, a combination of cream and Gruyere cheese and is baked to perfection.

Potatoes and leeks are a match made in heaven…like cookies & milk, like peanut butter & chocolate, like cheese & wine, like champagne & strawberries….but I digress. All right, so you’ve got my point? They just work perfectly together. When you add Gruyere cheese and heavy cream to them, it seemingly amplifies an already perfect marriage of flavors. I’m sure you’ll agree once you try this potato leek casserole.

Potato Leek Casserole in a skillet with plate on a side - ultimate comfort food side dish that resembles in taste famous Potato Leek Soup; topped with cream and Gruyer Cheese, rich, decadent, elegant and delicious casserole

How to make this Potato Leek Casserole?

Potato leek casserole is pretty simple to make. You need to just follow a few easy steps:

  1. Heat up 2 tablespoons of butter in a skillet; add chopped and cleaned leeks, and cook until soft (about 10 minutes).
  2. Add 2 cups of cream, salt, and pepper; and cook until it thickens up slightly (about 3 minutes).
  3. Peel the potatoes (Russet potatoes work great, but yellow are fine too).
  4. Using either a knife or mandolin, cut the potatoes into thin slices.
  5. Rub a separate cast iron skillet or casserole dish with garlic and spread with 2 tablespoons of butter.
  6. Place the first layer of potatoes down; cover with a third of leek/cream mixture, and top with a half cup of Gruyere.
  7. Repeat process with two more layers and all remaining cheese.
  8. Cover with foil and place into a 350° preheated oven.
  9. Bake, covered, for 40; then remove foil and bake for another 10 – until the cheese is golden and bubbly.
  10. Let the dish cool off for ten minutes before serving

Scroll down for the full printable recipe of this wonderful potato leek casserole.

Potato Leek Casserole in a skillet

What to serve this Potato Leek Casserole with?

The best part of this dish is that it’s super versatile. It can be served with many different kinds of dishes – like meat, fish, or vegetables. It can act as a side dish or vegetarian entree.

This potato leek casserole is elegant and can serve as a perfect side dish for your next holiday’s festivities.

If you’re looking for a dinner inspiration, I would suggest pairing it with one of the following my favorites recipes:

  • Maple Mustard Glazed Turkey
  • Slow Cooker Turkey Breast
  • Fall Harvest Roasted Turkey Breast
  • Slow Cooker Whole Roasted Chicken
  • Moroccan Spiced Beef Stew
  • Butternut Squash Beef Stew with Cinnamon & Pomegranates
  • Oven Roasted Chicken Legs
  • Baked Mustard Chicken with Clementines
  • Chicken Provencal with Shallots and Garlic

Potato Leek Casserole on a plate

How does this Potato Leek Casserole taste?

If I didn’t make it abundantly clear above, this is an amazing combination of tastes! I’m pretty sure a lot of you have heard about the velvety potato leek soup called ‘Vichyssoise. ‘

While the name suggests that this soup has French origins, Julia Child actually calls it “an American invention.” While the origins of this soup are in question, what is not is its flavor.

My point here is that this soup is super delicious. I often make it for my son. When he was a little over one-year-old I had sent it to his daycare for lunch.

When I returned that day, one of the teachers was amazed and said that while she didn’t know what was in this soup, it was apparent that my son loved it and acted as he wanted even more.

Potato Leek Casserole in a skillet and on a plate

For those of you who are familiar with the taste of the classic Vichyssoise soup, then I suggest you envision it with cream and cheese; and in so doing you’re now imagining the taste of my potato leek casserole.

It is heaven on earth! It’s like elevated scalloped potatoes. I encourage you to try and let us know how you liked it.

Potato Leek Casserole in a skillet

Potato Leek Casserole - ultimate comfort food side dish that resembles in taste famous Potato Leek Soup; topped with cream and Gruyer Cheese, rich, decadent, elegant and delicious casserole- Innocent Delight

Potato Leek Casserole

This side dish is made based on Julia Child's Potato Dauphinois Gratin but has a twist of the addition of sautéed leeks and resembles in taste the famous Potato Leek Soup; This casserole is full of flavor with garlic, cream, Gruyere cheese, and thyme. It's rich, decadent and elegant at the same time. It can be served as a perfect side dish for any Holidays or other gatherings.
5 from 6 votes
Print Pin Rate
Course: Casserole, Potato
Cuisine: French
Prep Time: 25 minutes
Cook Time: 50 minutes
Total Time: 1 hour 15 minutes
Servings: 8
Calories: 471kcal
Author: Edyta

Ingredients

  • 2 pounds of Russet Potatoes (See note 1), peeled and cut into 1/8 inch slices
  • 2 leeks , trimmed, washed and chopped
  • 1 garlic clove , cut in half
  • 4 tablespoon of butter
  • 2 cups of Gruyere Cheese (or Cheddar - See note 2)
  • 2 cups of heavy cream
  • 2 teaspoon of fresh thyme
  • Salt and Pepper to taste

Instructions

  • Trim and cut the leeks in half inches squares (cut the leeks lengthwise twice, first in half, then in quarters and then chop);
  • Place the leeks in a bowl of water to remove all the sand;
  • Scoop them out with a slotted spoon from the top and place on the paper towel to remove extra water;
  • In a skillet melt 2 tablespoons of butter;
  • Add leeks and sauté them until soft, stirring often for about 10 minutes;
  • Add cream, salt, and pepper and let the cream cook with leeks for about 3-4 minutes until the mixture thickens slightly, set aside
  • Using either mandolin or sharp small knife cut the potatoes in 1/8 inch slices;
  • Rub the garlic all over either the cast iron skillet or casserole dish and smear with 2 tablespoon of butter (9 inches round or 8x8 inches square);
  • Spread the first layer of potatoes at the bottom of the dish;
  • Add 1/3 of the cream-leek mixture;
  • Sprinkle with salt, pepper, 1/2 cup of cheese and 1/3 of thyme;
  • Repeat the process with two more layers and use all the remaining cheese on top;
  • Cover the dish with foil and bake for about 40 minutes in preheated oven to 350 F;
  • Then remove the foil and bake it for another 10 minutes until the cheese is golden and bubbly.

Notes

1. I used yellow potatoes, but Russet will work great as you need starchy potatoes
2. If you cannot find Gruyere or you don't want to use it as it is pretty pricey, you may substitute with Cheddar or other well-melting cheese.

Nutrition

Calories: 471kcal | Carbohydrates: 19g | Protein: 14g | Fat: 38g | Saturated Fat: 23g | Cholesterol: 132mg | Sodium: 199mg | Potassium: 579mg | Fiber: 3g | Sugar: 1g | Vitamin A: 1735IU | Vitamin C: 16.1mg | Calcium: 421mg | Iron: 4.2mg
Tried this recipe?Show me @eatingeuropean or tag #eatingeuropean!

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Filed Under: Dinner, Ethnic Recipes, European Recipes, French, Side dish, Vegetarian

Previous Post: « Polish Fluffy Apple Pancakes – Racuchy
Next Post: Butternut Squash Beef Stew with Cinnamon and Pomegranates »

Reader Interactions

Comments

  1. Moira Connolly-McKenna

    November 9, 2016 at 9:57 pm

    5 stars
    Looks amazing! You had this Irish girl at potatoes!

    Reply
    • Edyta

      November 13, 2016 at 5:47 pm

      Awesome, thanks Moira!

      Reply
  2. Debra C.

    November 27, 2017 at 10:56 pm

    5 stars
    Your description of this meal has my mouth watering! The pictures emphasize the delicious cheesiness of this amazing dish – I think I’d make a meal of it, nothing else needed – YUM!

    Reply
  3. Marie

    November 28, 2017 at 1:23 am

    5 stars
    The pictures are making me drool! It looks so delicious. Leeks and potatoes are definitely a match made in heaven and the Gruyere cheese makes it even better!

    Reply
  4. Brian Jones

    November 28, 2017 at 1:29 am

    5 stars
    Lov that you used Gruyere in this dish, I bet it adds such a great nutty sweet favour… Such a great melting cheese, a super recipe.

    Reply
  5. Lucy @ Supergoldenbakes

    November 28, 2017 at 5:06 am

    5 stars
    This sounds super rich and indulgent. I think I could happily eat this for supper along with a pile of crisp green salad leaves and be more than content.

    Reply
  6. Anna

    November 28, 2017 at 5:21 am

    5 stars
    Leek and potato is one of my favourite combos in the whole world, and normally, that is my ‘go-to’ soup, but after seeing this casserole, I think I will switch… 🙂 Pychota!

    Reply
    • Edyta

      November 29, 2017 at 1:25 pm

      You will love it! Pychotka….

      Reply
  7. Krystle

    February 19, 2020 at 12:04 pm

    How do I adjust my oven temperature to be able to make this dish with your roasted chicken leg recipe? The recipes call for 2 different temps! Thanks!

    Reply
    • Edyta

      February 19, 2020 at 9:04 pm

      Put both dishes together at 350 and for 50 minutes and then when you take potatoes out, cover them back with foil and rise the temperature of your oven to 425F and cook the chicken for another 15 minutes. They should crisp up and come out just right.

      Reply

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Hi, I'm Edyta. I’m a recipe developer, photographer, and writer behind the Eating European food blog of European and Mediterranean healthy and delicious recipes. I consider myself a home chef with a cultivated passion for amazing food.
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Hi, I'm Edyta. I’m a recipe developer, photographer, and writer behind the Eating European food blog of European and Mediterranean healthy and delicious recipes. I consider myself a home chef with a cultivated passion for amazing food.
I’m also a reformed New York State attorney, who practiced for several years only to thereafter decide that this was my real passion. Maybe one day I decided to step back to the courtroom, but in the meantime I’m enjoying spending my time with my kids, my husband, my kitchen and YOU! Read More…

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