This Sous Vide leek recipe is a great way to cook leeks to absolute perfection. Cooking leeks sous vide ensure that they’re not just perfectly cooked but as they’re not cooked in water, you get 100% leek flavour.
Cooking the leeks in plenty of olive oil, slowly for 1h gives them a fantastic confit tenderness. We pair our sous vide leeks with a classic French soubise sauce, chive oil and finish them with aged comté cheese and crispy onions. Read on to find out how to make this easy yet refined vegetarian dish!
![leeks soubise sauce](https://www.pariseater.com/wp-content/uploads/2024/03/sous-vide-leeks-soubise-sauce.jpg)
The Ultimate Way to Cook Leeks
Sous vide is a fantastic way of cooking food, not only is it fool proof, you’re also left with superior tasting food. It’s a great way to cook leeks which can be tricky to cook perfectly whilst preserving their colour and shape.
I cook the leeks sous vide at 84c/183f for 1 hour, resulting in perfectly cooked leek whites. At such high temperatures it’s best to use proper vacuum sealed bags rather than sandwich/zip-lock bags.
Our sous vide, confit leeks are then served with an incredibly easy Soubise sauce which is a classic, French onion sauce made with cream. This was inspired by the guys in the London restaurant Fallow who use onion offcuts to smoke their sauce.
I finish the confit leeks by blowtorching them to get a great finish and dress it with grated aged comté cheese, crispy onions, fresh chives. Finally I finish the plate off with a really vibrant chive oil. You can find recipes for the Soubise sauce and chive oil below:
What You’ll Need
To make Sous Vide leeks, you’ll need:
![leeks for sous vide](https://www.pariseater.com/wp-content/uploads/2024/03/sous-vide-leeks-ingredients.jpg)
Leeks: I use organic leeks from my local greengrocers in Paris. You can use any leeks that you find. To cook them sous vide, I remove the top green parts (you can keep these for stock) and only use the white stem.
Olive Oil: To create a ‘confit’ effect whilst cooking the leeks I add a good quantity of Extra Virgin Olive Oil. It won’t change the effect that much but it will add plenty of favour.
Sous Vide Setup: I use an Anova Immersion Circulator placed into a tub of water. I also use a Vacuum Chamber sealer but you can use double sandwich bags instead.
Blowtorch: Finishing the sous vide leeks with a blowtorch adds a nice smokey note imparts even more flavour into the dish. This is completely optional however!
Ingredients
Makes enough for 2 main portions:
- 2 large leeks (bottoms and green tops removed), white parts only cut into 3 inches / 7 cm sections
- 50ml extra virgin olive oil
- Soubise sauce, as required
- Chive oil, as required
- Grated aged Comté cheese, as required
- Fresh finely minced chives, as required
- Crisy onions, as required
![sous vide leek garnish](https://www.pariseater.com/wp-content/uploads/2024/03/sous-vide-leeks-garnish.jpg)
How to Make Sous Vide Leeks
- Preheat a sous vide water bath with a circulator to 84c/183f.
- Whilst the water is heating prepare the leeks. Trim the bottom ends off and the green tops (you can keep these for vegetable stock/broth). Slice the white hearts into 3 inches / 7 cm sections. Rinse them thoroughly in cold water whilst pressing the sides to ensure the interiors are washed out.
- Once washed, pat the leek sections dry. Season with salt and pepper and place into a vacuum bag. Add the olive oil and seal.
- Place into the water bath and cook for 1 hour. Remove and torch with a blowtorch (optional).
- Serve onto the Soubise sauce and dress with grated comté cheese, crispy onions and freshly minced chives. Finish the dish with a few drops of chive oil.
What Can I Serve it With?
You can serve the sous vide leeks, like I did, with Soubise sauce and a garnish of comté cheese, chives and crispy onions for an elegant main dish. Alternatively you can serve them with a warm French vinaigrette to make a classic French starter.