Leek Mashed Potatoes

These leek mashed potatoes are the kind of side dish that quietly steals the whole meal. Soft, buttery, and full of gentle leek flavour, they turn simple mashed potatoes into something that feels extra cozy and a little bit special. If you love the kind of food that is easy to make but tastes like real comfort on a plate, this recipe is for you. They are perfect with chicken, roast meat, or anything that needs a creamy, comforting side everyone at the table will want more of.

Note from Ana

Leeks are one of my kids’ absolute favourite vegetables, which still makes me smile every time I say it. I know not every child gets excited about leeks, but mine really do, and because of that, I use them as much as I can when they are in season. They go into soups, stews, simple side dishes, and even salads in our house. If you have never tried them in a salad, you really should, my Leek and Apple Salad is such a lovely one.

But these Leek Mashed Potatoes are one of the recipes we come back to again and again. We absolutely love them. They are soft, buttery, cozy, and full of that gentle, sweet leek flavour that makes plain mashed potatoes feel just a little more special. It is such a simple recipe, but somehow it always feels like more than just a side dish.

I make this at least once a week when beautiful leeks are in season, partly because they are delicious and partly because when your children happily eat leeks, you do not ask too many questions, you just keep buying leeks. It feels like one of those small parenting wins that should probably be celebrated properly.

What I love most is how easy this dish is. The potatoes and leeks cook together, the butter goes in, and suddenly you have something warm and comforting on the table that works with almost anything. I serve it with chicken, roasted meat, or whatever we are having that day, and it always disappears quickly.

This is one of those simple family recipes that does not try too hard, but always delivers. Cozy, tasty, easy, and full of seasonal goodness, exactly the kind of food I love making for my family.

Best,

Ana

Why you’ll love this recipe

Main ingredients:
This recipe uses just a few simple ingredients; potatoes, leeks, butter, salt, and black pepper, but together they make something truly special. It is amazing how such humble ingredients can turn into a side dish that feels so cozy, comforting, and full of flavour.

How it’s made:
The potatoes and leeks are cooked together until soft and tender, then mashed with butter until creamy and delicious. It is such an easy recipe, with no complicated steps, but the result feels like the kind of side dish that makes the whole meal better.

Flavours:
These leek mashed potatoes are soft, buttery, and full of gentle, sweet leek flavour. They taste warm and comforting in the loveliest way, the kind of food that feels simple, familiar, and exactly right on a busy day or a cozy family dinner night.

How to Serve

Serve these leek mashed potatoes warm, straight from the pot, while they are still soft, buttery, and extra comforting. I love serving them with chicken, especially grilled chicken, chicken skewers, or even simple chicken nuggets for an easy family meal. They also go beautifully with Beef Sizzle Steak, pork, sausages, or any kind of slow-cooked meat that needs a cozy side on the plate. If you want to round the meal out a little more, add something fresh and simple on the side, like a green salad, steamed peas, or roasted carrots. It is one of those side dishes that fits in so easily and somehow makes the whole dinner feel more complete.

Tips for Success

The biggest tip here is to clean the leeks really well. Leeks love to hide dirt between their layers, so taking an extra minute to soak and rinse them properly makes all the difference. There is nothing worse than making a beautiful creamy side dish and finding grit in it at the end.
Try not to overcook the potatoes too much before adding the leeks. Starting the potatoes first gives them a little head start, and then the leeks can cook just enough to become soft and sweet without losing all their lovely flavour. You want both vegetables nice and tender, but not waterlogged.
When it is time to mash, drain everything well first. Too much water will make the mash loose and bland, and this recipe is at its best when it is soft, fluffy, and full of buttery flavour. I like to let the steam escape for a minute before adding the butter, just to help keep the texture nice.
Mash gently and do not overwork it. Potatoes can turn gluey if you go at them too hard, so a potato masher or even a fork works beautifully here. You want the mash creamy and soft, but still with a little homemade texture.
And finally, season at the end and taste properly before serving. Potatoes need a good amount of salt to really come alive, and the black pepper adds such a lovely little warmth. It is a very simple recipe, so small details like proper seasoning and texture are what make it go from just fine to really delicious.

ubstitutions & Variations

This is such an easy recipe to play with, which is one of the reasons I make it so often. If you want a richer mash, you can add a splash of warm milk or a little cream along with the butter. It makes the potatoes extra soft and creamy, especially if you are serving them with roast meat or for a cozy family dinner.
You can also swap the butter for olive oil if you want a lighter version, or use vegan butter to keep the dish dairy-free. It still works beautifully and lets the sweet, gentle flavour of the leeks shine through.
For the potatoes, I like using floury potatoes for the fluffiest mash, but most everyday potatoes will still work well here. If you want a slightly chunkier, more rustic texture, you can leave a few little pieces as you mash, which actually suits this dish so nicely.
You can change the flavour a little by adding extras too. A spoonful of cream cheese, sour cream, or even a little grated Parmesan can make it feel richer and more indulgent. Fresh herbs like parsley, chives, or a little thyme are also lovely if you want to freshen it up.
If you love garlic, you can cook a few cloves of garlic with the potatoes and leeks, then mash everything together. It gives the dish another cozy layer of flavour without making it complicated.
And if you want to turn this side dish into something a little different, you can even spoon it into a baking dish, top it with a little cheese, and bake it until golden on top. It becomes a lovely mash bake that feels a bit special, but still very easy and family-friendly.

Storage & Reheating Tips

These leek mashed potatoes store really well, which makes them such a handy side dish to make ahead. Once cooled, keep them in an airtight container in the fridge for up to 3 days. They are perfect for pulling out when you need a quick side for lunch or dinner.

When it is time to reheat, you can warm them in the microwave for an easy option, or reheat them gently on the stovetop. If you are using the stove, add a couple of spoonfuls of water, milk, or a little extra butter to help loosen the mash and stop it from sticking. Give it a gentle stir as it warms through.

One little tip is not to let them dry out when reheating. Mashed potatoes naturally thicken as they sit, so a small splash of liquid brings them right back to that soft, creamy texture. Once warmed, taste again and add a little extra salt or pepper if needed before serving.

To make Leek Mashed Potatoes you only need three ingredients and one pot. It is buttery but light and bright.

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Prep Time 20

Cook Time 25

Total Time 45

Course Side Dish

Cuisine Croatian

Servings

Ingredients

4 medium potatoes peeled and cubed
4 leeks sliced
40 g butter or to taste
salt to taste
black pepper to taste

Optional, for garnish:

1 green onion thinly sliced

Instructions

For the potatoes: Add potatoes to cold, salted water and cook for 10 - 12 minutes or until halfway cooked.
For the leeks: Add them to potatoes and cook additional 8 - 10 minutes or until both vegetables are fork tender and cooked through.
Add butter: Drain leeks and potatoes and return to the same pot. Add butter and carefully mash with potato masher or a fork. Season with salt and black pepper. Garnish with green onion and serve.

Notes

How to clean leeks: Start by cutting off the root end and dark green leaves. Slice into thin rings and place into a bowl of cold water. Gently separate the layers of the leeks with your fingers to ensure all the dirt is removed. Place the slices in a colander and rinse under cold water.

Serving options: Serve it as a side dish with chicken or other poultry. It also goes really well with roasted beef or pork.

Meal prep: You can make Leek Mashed Potatoes in advance, It will hold well in the fridge up to three days. You can reheat it in the microwave or on the stove top. When re-heating on the stove top add a couple of spoons of water to prevent from sticking and burning.

What drink to serve with Leek Mashed Potatoes: the best wines to pair with leek dish are dry white wines such as Chenin Blanc and unoaked or subtle oaked Chardonnay.

Vegan option: Replace butter in this recipe with vegan butter.

Keyword kid-friendly, side dish

Author

Ana

Welcome to my culinary haven! My name is Ana, and I'm the passionate voice behind World Cuisines Network. Here, I share recipes that have not only won the approval of my family but have also stood the test of time in our kitchen. My goal is to introduce the rich tapestry of global flavors right to your family table. Thank you for dropping in! We're thrilled to have you join us.

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Leek Mashed Potatoes

Note from Ana