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Leek and Potato Gratin

With Easter just less than a month away, I had to share one of my favorite side dishes for holidays and special occasions. This leek and potato gratin is something that I learned to make a few years ago and haven’t stopped since. Our family absolutely loves it! It goes perfectly with a beautiful oven roast- whether it’s ham, turkey or chicken, you can’t go wrong!

Leek and Potato Gratin

Leeks are something I had never cooked with prior to working at Sur La Table. Now they’re something look forward to buying and using every spring! They’re like a giant green onion, only less pungent. And they just happen to work perfectly in this dish.

Leek and Potato Gratin

You’ll need just one big one… and just the white/light green part. To clean it, slice the leek down to the root, then rotate it so that the cut is even with your cutting board and cut the leek again. That will leave you with 4 even sections. Now that the leek is nice and open you can run it under cold water to remove an grit or dirt that’s trapped deep down in there.

Leek and Potato Gratin

Sauté the sliced leek in butter along with a little garlic until tender and translucent. Add some cream, milk, salt, pepper and paprika and bring to a simmer. Add the thinly sliced potatoes (I usually use about 3 large Russet potatoes and find that using a mandolin is not only super quick but creates perfectly even slices) and allow them to cook without stirring them for about 5 minutes, then add the fresh thyme. Layer the gratin by working in thirds. ⅓ of the potatoes, ⅓ of the cheese, ⅓ of the cream mixture. When it’s layered pop it into the oven and bake for 45-55 minutes or until the potatoes are tender and the top is crust and brown. Garnish with a few pinches of paprika and chopped chives.

Leek and Potato Gratin

This creamy, cheesy flavorful gratin will be gone in seconds! It’s a recipe that you’re family will be begging you to make!

 

Leek and Potato Gratin

Leek and Potato Gratin Recipe

You're going to love this creamy, cheesy leek and potato gratin! It's got layers and layers of flavor!
5 from 4 votes
Pin Rate
Course: Side Dish
Cuisine: American
Prep Time: 15 mins
Cook Time: 1 hr
Servings: 6
Calories: 331kcal
Author: Life Made Simple Team
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Ingredients

  • 2 Tbsp butter
  • 1 large leek (white and light green parts only) - thinly sliced
  • 1 clove garlic - minced
  • 1/2 cup heavy cream
  • 3/4 cup whole milk
  • 1 1/2 tsp salt
  • 1/4 tsp black pepper
  • 1/4 tsp paprika
  • 3 large russet potatoes - peeled and thinly sliced
  • 1 1/2 tsp fresh thyme
  • 1/2 cup cheddar cheese - grated
  • 1/4 cup parmesan cheese - shaved
Garnishes
  • chopped chives
  • pinch or two of paprika

Instructions

  • Preheat oven to 375 degrees. Lightly butter a 9" pie dish, 9x9" square baking pan, or a medium size gratin dish, set aside.
  • In a large non-stick skillet over medium heat, melt butter, then add leeks. Saute until soft and tender, then add garlic and cook until fragrant (taking care to not let either brown). Add cream, whole milk, salt, pepper and paprika. Bring mixture to a simmer then add the sliced potatoes into the mixture. Allow the potatoes to cook for 5 minutes, then stir in thyme. Combine the cheese in a small bowl.
  • Transfer ⅓ of the potato slices to the prepared baking dish, sprinkle with ⅓ of the cheese mixture and repeat, pouring some of the cream mixture in between each layer (over the cheese). Place in oven and bake for 45-55 minutes or until the potatoes are tender and the top is golden brown. Remove from oven and allow to cool for 15 minutes before garnishing with a pinch or two of paprika and chopped chives.

NOTES

-This recipe can easily be doubled and baked in a 9x13" dish.
Nutrition Facts
Leek and Potato Gratin Recipe
Amount per Serving
Calories
331
% Daily Value*
Fat
 
17
g
26
%
Saturated Fat
 
10
g
63
%
Trans Fat
 
1
g
Polyunsaturated Fat
 
1
g
Monounsaturated Fat
 
5
g
Cholesterol
 
53
mg
18
%
Sodium
 
773
mg
34
%
Potassium
 
874
mg
25
%
Carbohydrates
 
38
g
13
%
Fiber
 
3
g
13
%
Sugar
 
3
g
3
%
Protein
 
9
g
18
%
Vitamin A
 
899
IU
18
%
Vitamin C
 
13
mg
16
%
Calcium
 
202
mg
20
%
Iron
 
2
mg
11
%
* Percent Daily Values are based on a 2000 calorie diet.
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Recipe source: Life Made Simple

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Comments:

  1. I can’t tell you how much I LOVE potato gratin! It is by far my favorite and I used to ask for it on my birthday when I was a kid. This recipe looks extra good with the leeks. I’ll have to give it a shot! Yum!

  2. I am drooling over here! I love gratin and so does my hubby–I am going to add this to my Yummly now so I can come back and make it! Thanks for sharing 🙂

  3. These look great! I love leeks and adding them to a gratin sounds awesome! Thanks for the recipe!

  4. This looks amazing! Am I reading this right, that I shouldn’t pull the potatoes out separately AFTER letting them simmer in the cream mixture, to layer in the baking dish? And it says ‘combine cheese’ at one point, but with what?

    Making this with dinner tonight regardless, and I’m sure it’ll be delicious… Just a bit confused on the directions!

  5. Loved this recipe! Made it tonight and it turned out fab. I did brown some ground beef in with the leeks tho because my husband doesn’t consider it a meal without meat. Would be great with ham too. Thanks for the leek recipe that wasn’t a soup.

  6. A fantastic way to use leeks and potatoes.  Made it for my wife, who, after trying a sample spoonful, kept helping herself every time my back was turned preparing the rest of the meal.  So good, she took the leftovers for lunch the next day.  Super easy to make.  The only change I made was I added an extra 1/4 cup of Gruyère cheese.  Well done

    1. I wouldn’t know how much one weighs. I just compare to others in the bag. If they tend to be on the smaller side, you can use a couple more.

  7. 5 stars
    Delicious and so much easier than making this the “traditional” way as you don’t need a low oven temperature so can put it in the oven at the same time as other things.