Leek Gratin: 3 Steps to a Delicious Side Dish!

Oh, you guys, let me tell you, when I think of simple elegance and pure comfort food, my mind *immediately* goes to the amazing world of gratins! There’s just something so satisfying about a bubbly, cheesy, flavorful dish, you know? And if you’re looking for a side that’s easy-peasy *and* feels fancy-schmancy, well, you’ve come to the right place because today, we’re diving headfirst into the deliciousness of Leek Gratin. I’ve been cooking (and eating!) for as long as I can remember, and trust me, this one’s a keeper.

I actually fell in love with a similar dish back when I was a college student, trying to impress a date (wish me luck!). It was a total culinary adventure, and let me tell you, this Leek Gratin is a much easier, tastier, and dare I say, more impressive version than the one I made back then. This recipe is a classic, made with just a handful of ingredients. Plus, it’s so incredibly simple, you’ll be making it again and again.

Close-up of a freshly baked Leek Gratin in a white baking dish, with golden-brown cheese topping.

Why You’ll Love This Easy Leek Gratin

Okay, friends, let me tell you why I’m completely obsessed with this Leek Gratin. First off, it’s a lifesaver on busy weeknights! You can whip it up in, like, no time at all. Seriously, the prep is super quick, and then BAM – you’ve got this elegant side dish that looks like you spent hours slaving in the kitchen.

Here’s what makes it amazing:

  • Super Easy: Seriously, even if you’re a beginner cook, you got this!
  • Simple Ingredients: Nothing fancy here, just a few basics that you probably already have.
  • Flavor Explosion: The leeks, cream, and Gruyère? Pure magic, I tell you.
  • Versatile Delight: Serve it with anything! Roasted chicken, grilled fish, a simple salad…it all works!

Ingredients for the Perfect Leek Gratin

Okay, so, listen up because the secret to a seriously good Leek Gratin is all about starting with amazing ingredients. Trust me, the better the stuff you put in, the better it’s going to taste. You’ll need: two tablespoons of butter – and real butter, please! None of that fake stuff. Then, grab two large leeks, and those need to be thinly sliced, only the white and light green parts, so make sure to wash those babies super well before using them. You’ll also need a 1/4 teaspoon of salt, a 1/4 teaspoon of black pepper, and a cup of heavy cream. And the grand finale? Half a cup of grated Gruyère cheese – and get the good stuff! That’s where the flavor really goes boom!

How to Make Delicious Leek Gratin: Step-by-Step Instructions

Alright, so now for the fun part: actually making this amazing Leek Gratin! Don’t you worry, it’s easier than you think. Just follow these steps, and you’ll be swimming in cheesy, leeky goodness in no time! I promise, even if you’re a little unsure in the kitchen, you CAN do this. I’m here to guide you!

Preparing the Leeks for Your Leek Gratin

First things first, let’s get those leeks ready to roll. Trust me, this is super important! You’ll want to take those leeks and, well, first, chop off the root end and the dark green tops. We only need the white and light green parts – save the rest for a stock, maybe? Then you’ll want to slice your leeks thinly. Now, WASH them! Leeks are notorious for hiding dirt, so slice ’em up, then give them a good rinse under cold water. I like to put them in a bowl and swish them around a bit. You can use a chef’s knife or even a serrated knife is fine.

Cooking the Leeks: The Heart of the Leek Gratin

Next up, it’s time to cook those leeks! Melt the butter in a skillet over medium heat. Add your sliced, washed leeks, a pinch of salt, and a little pepper. Now, the key here is to cook them *slowly*. Stir occasionally, and let them soften – about 8-10 minutes. You want them to get nice and tender, not browned. I made the mistake once of cooking them on too high of heat and burned them! Not a good look, and it definitely ruined the flavor! Once they are soft — but *not* mushy — pour in that heavy cream! Bring to a simmer and let it cook for about 2 minutes.

Assembling and Baking Your Leek Gratin

Okay, almost there! Now, grab a baking dish, and pour that lovely leek mixture right in. Make sure you use a baking dish, and not a skillet, or things will go wrong fast! Spread it out evenly, and then sprinkle that Gruyère cheese all over the top. Yum! Preheat your oven to 375°F (190°C) and bake for 20-25 minutes, or until the cheese is melted, bubbly, and a gorgeous golden brown. Keep an eye on it – nobody wants a burnt cheese situation! And when it’s done? Let it cool for a few minutes and enjoy every single bite!

Close-up of a freshly baked Leek Gratin with melted cheese and tender leeks.

Close-up of a golden-brown Leek Gratin baked in a white ceramic dish, ready to serve.

Close-up of a baked Leek Gratin with melted cheese, bubbly and golden brown.

Ingredient Notes and Substitutions for Your Leek Gratin

Okay, let’s chat about the stars of the show – and some fun swaps if you’re feeling adventurous! First off, the leeks. They’re the backbone of this Leek Gratin, bringing that subtle oniony sweetness. Make sure to find fresh ones; they should be firm and look vibrant! Now, for the cheese! I adore Gruyère because it melts like a dream and has such a nutty flavor, but don’t sweat it if you can’t find it. Swiss cheese is a fantastic, if slightly more mild, alternative. Parmesan is great, too, for a stronger hit! And the heavy cream? Don’t skimp! It makes the sauce oh-so-luxurious. You could try half-and-half, but the gratin won’t be as rich.

Tips for Success: Achieving the Perfect Leek Gratin

Okay, so, you want to make this Leek Gratin absolutely perfect? Here’s my best advice, straight from my kitchen to yours! First off: preheat that oven! It sounds simple, but trust me, it’s a big deal. Always always make sure your oven is up to temperature before you put the gratin in – usually 375°F (190°C). Another biggie? Don’t overcrowd your skillet when you’re cooking the leeks. Give them some space so they can soften properly and cook evenly. I also always make sure my ingredients are super fresh – the flavor really shines! I’ve learned that lesson the hard way, trust me. Fresh leeks and good cheese? Pure magic!

Serving Suggestions to Complement Your Leek Gratin

So, you’ve got this amazing Leek Gratin, and now you’re wondering, “What do I serve it *with*?” Well, let me tell you, the possibilities are endless! But the beauty of this dish is that it’s super versatile. It plays well with so many things!

My absolute favorite is to pair it with roasted chicken or a simple grilled fish. The richness of the gratin just balances perfectly with the lighter protein. For extra veggies, I love serving it alongside a simple green salad – a little crispness to cut through the creaminess! Honestly, you can’t go wrong.

Storage and Reheating Instructions for Leek Gratin

Okay, so, you cooked this amazing Leek Gratin and somehow, miraculously, you have leftovers, right? (I’m usually guilty of eating it all in one sitting!). No worries, though, because it’s super easy to store and reheat! You can store it in the fridge for about 3-4 days in an airtight container – it’s still good then, promise! You can even freeze it. Just let it cool completely, then wrap it well and freeze for up to a month.

To reheat, I swear by the oven. Just pop it in a baking dish and bake it at 350°F (175°C) until it’s warmed through and the cheese is bubbly again. You can also microwave, but be warned, you might lose a little of that gorgeous texture! Either way, it’s still delicious!

Frequently Asked Questions about Leek Gratin

So, you’ve got questions? I’ve got answers and I’m ready to spill the beans on all things Leek Gratin! I totally get it – whenever I find a new favorite recipe, I always have a million questions myself. So, let’s dig in.

Can I make Leek Gratin ahead of time?

Absolutely! I’m a HUGE fan of making things ahead, especially when I’m entertaining. You can totally make this Leek Gratin earlier in the day, even the day before! Just follow the directions up to the baking step, then cover it tightly and put it in the fridge. When you’re ready to eat, pop it in the oven and bake until it’s bubbly and golden brown. It’s a total game-changer, trust me.

What cheese is best for Leek Gratin?

Oh, the cheese questions! My personal fave, hands-down, is Gruyère – it melts like a dream, and that nutty flavor is just perfect. But listen, don’t feel locked in! Swiss cheese works beautifully too, and you could even try a blend of Gruyère and Parmesan for a little extra oomph. Experiment! See what you like! The main goal is to pick something that melts well and tastes good with leeks.

How do I prevent my Leek Gratin from being watery?

Ugh, watery gratins? The worst! The secret is to make sure your leeks are cooked down enough so they aren’t dumping out a bunch of moisture in the oven. Also, make sure that the leeks are well rinsed, and that you cook them slowly to simmer any excess water out of them. Another trick: don’t overcrowd the skillet and cook them low and slow so they can sweat out a bit of extra liquid. Nobody wants a watery mess!

Nutritional Information Disclaimer

Okay, just a little heads-up! The nutritional information here is just an estimate, you know? It can change depending on your specific ingredients, the brands you use, and how much cheese you pile on. So, take it with a grain of salt, alright?

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Close-up of a golden brown baked Leek Gratin in a ceramic dish, ready to serve.

Leek Gratin


  • Author: iyma hernandes
  • Total Time: 40 min
  • Yield: 4 servings 1x
  • Diet: Vegetarian

Description

A simple gratin made with leeks.


Ingredients

Scale
  • 2 tablespoons butter
  • 2 large leeks, white and light green parts only, thinly sliced and washed
  • 1/4 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1 cup heavy cream
  • 1/2 cup grated Gruyère cheese

Instructions

  1. Preheat your oven to 375°F (190°C).
  2. Melt the butter in a skillet over medium heat. Add the leeks, salt, and pepper. Cook, stirring occasionally, until the leeks are softened, about 8-10 minutes.
  3. Pour in the heavy cream and bring to a simmer. Cook for 2 minutes.
  4. Pour the leek mixture into a baking dish.
  5. Sprinkle the Gruyère cheese over the top.
  6. Bake for 20-25 minutes, or until the cheese is melted and bubbly.

Notes

  • You can use other types of cheese, such as Swiss or Parmesan.
  • Serve this dish hot.
  • Prep Time: 15 min
  • Cook Time: 25 min
  • Category: Side Dish
  • Method: Baking
  • Cuisine: French

Nutrition

  • Serving Size: 1 serving
  • Calories: 250
  • Sugar: 3g
  • Sodium: 200mg
  • Fat: 20g
  • Saturated Fat: 12g
  • Unsaturated Fat: 6g
  • Trans Fat: 0g
  • Carbohydrates: 10g
  • Fiber: 2g
  • Protein: 8g
  • Cholesterol: 60mg

Keywords: leek gratin, gratin, leeks, side dish, vegetarian

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