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Leek Potato Gratin Recipe

The best and easy leek potato gratin recipe made with cream, thyme, chives and finished with a layer of mushroom jack cheese.

Leek Potato Gratin Recipe

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Sauteed leeks and paper thin sliced golden potatoes are the star in this comforting vegetarian potato and leek gratin, a dish originated in French cuisines that spread all over the world.

I used my mandoline slicer to slice the potatoes so thin you could read the morning paper through them. Then I saute the leeks until they start to get some color and layer all the goodies in a shallow baking dish. 

Leek Potato Gratin Recipe

Because a leek potato gratin screams comfort, I whisked together some heavy cream with a large egg yolk and chives for a custardy like finish to pour over the top.

Sprinkled with gooey mushroom jack cheese this is what comfort food and chilly winter days are all about. No flour needed.

Leek Potato Gratin Recipe

Leek Potato Gratin Variations:

  • replace the mushroom jack cheese with gruyere 
  • finish with a dab of truffle butter or truffle oil
  • replace the leeks with sauteed broccoli or mushrooms
  • add a thin layer of ricotta or goat cheese between the potatoes and veggies
  • make them vegan scalloped potatoes,  super delicious, completely dairy-free and good for you!

What to serve with:

  • smoked salmon and dill
  • chimichurri steak
  • garlic roasted chicken
  • grilled chicken
  • chicken carnitas

Leek Potato Gratin Recipe

Leek Potato Gratin Recipe
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Leek Potato Gratin Recipe

The best and easy leek potato gratin recipe made with cream, thyme, chives and finished with a layer of mushroom jack cheese.
Course Side Dishes
Cuisine French
Prep Time 15 minutes
Cook Time 50 minutes
Total Time 1 hour 5 minutes
Servings 4
Author Florentina

Ingredients

  • 1 lb golden potatoes scrubbed well
  • 2 leeks
  • 1/2 tsp sea salt + more to taste
  • 7 oz jack cheese with mushrooms shredded
  • 1 c heavy cream
  • 1 egg yolk large
  • 1/3 c fresh chives snipped
  • 2 tbsp fresh thyme leaves only
  • 1 pinch nutmeg freshly grated
  • 2 tbsp olive oil extra virgin
  • 1/2 tbsp butter

Instructions

  • Preheat your oven to 350”F
  • Slice the leeks lengthwise then slice it crosswise. Add them to a bowl with cold water. Stir to rinse well and allow them to stay in the water for a few minutes. All the grit and dirt will fall to the bottom of the bowl. 
  • Use your hands and scoop out the leeks from the water and drain them on a kitchen towel.
  • Preheat a large skillet on medium low flame. Add a lug of olive oil and the leeks with a pinch of sea salt. Saute until wilted and they start to het some color. Adjust seasonings to taste with more sea salt and black pepper. Set aside
  • Using a mandoline thinly slice the potatoes. Sprinkle all over the top with a good pinch of sea salt and black pepper.
  • Use your hand and butter a large gratin dish including the sides. (You can use 2 small gratin dishes if you wish)
  • Layer the thinly slice potatoes on the bottom of the gratin dish overlapping each other. Scoop the sauteed leeks and spread them on top of the potato slices. Sprinkle with the fresh thyme.
  • In a mixing bowl whisk together the heavy cream with the egg yolk, a dash of nutmeg and the chives. Pour over the leeks. Sprinkle with the grated mushroom jack cheese and cover with aluminum foil.
  • Bake the leek potato gratin in the preheated oven for about 45 minutes, remove the foil and cook another 10 minutes or so until the cheese is golden on top. 

You’ll Also Love:

Crispy Sage Potatoes with chanterelle mushrooms recipe

Sage Potatoes with Chanterelles

Roasted Sweet Potatoes Recipe

Sweet Potato Rounds

Sweet Potato Mash

Filed Under: Gluten Free, Potato, Sides, Vegetables, Vegetarian

About Florentina

Hi, I'm Florentina, the voice behind the wholesome recipes you find in this journal. But I'm not alone, I'm really just channeling the Man in the Photo, one recipe at a time! Thank you for joining me in my quest for the art of simple, rustic living, trying to capture the raw beauty of organic food & life through the lens of my Iphone and camera.

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Reader Interactions

Comments

  1. Kim Acree

    December 6, 2016 at 11:40 pm

    The recipe for the Leek & Potato Gratin does not show up. Would love to get the recipe.

    Reply
    • Florentina

      December 7, 2016 at 12:40 pm

      Hi Kim, are you still having this issue? I am able to see the recipe both on desktop, phone and Ipad. Please let me know, thanks~ Florentina

      Reply
  2. Vivian

    April 5, 2018 at 2:23 pm

    LOVE this recipe….making it tonight for the second time!!! I would give it five stars, if it would let me 😉

    Reply
  3. G

    November 17, 2019 at 1:32 pm

    5 stars
    Made this for a special evening with friends and it was amazing! Used a jack cheese blend. Would definitely make it again!

    Reply

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Ciao Florentina Channeling the Man in the Photo, one recipe at a time, mostly Italian and Vegetarian lifestyle! Please join my quest for the art of simple, rustic living, trying to capture the raw beauty of food & life through the lens of my Iphone - Florentina L.

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