Onion Tart With Leeks, Capers and Anchovy Recipe (2024)

By David Tanis

Onion Tart With Leeks, Capers and Anchovy Recipe (1)

Total Time
1 hour 15 minutes
Rating
4(182)
Notes
Read community notes

Though this tart may seem complicated, it’s actually rather simple to put together. Once you make the savory onion mixture, all that’s left to do is spread it on a sheet of rolled-out puff pastry, top it with anchovy fillets and capers, and bake it to a golden brown. Use any kind of flaky pastry or pie dough you wish, or even spread the mixture on yeasted pizza dough. Accompany with a salad of small lettuce greens if desired. The tart is delicious served warm or at room temperature.

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Ingredients

Yield:4 to 6 servings

  • ¼cup extra-virgin olive oil
  • 3medium onions, diced (about 3 cups)
  • Salt and pepper
  • 3medium leeks, white and tender green parts, diced (about 2 cups)
  • 3garlic cloves, minced
  • ½teaspoon chopped fresh thyme leaves
  • 1sheet store-bought all-butter puff pastry, thawed and rolled into a 10-inch circle (or use any favorite pie dough recipe)
  • 2teaspoons medium capers, rinsed
  • 8anchovy fillets
  • 2teaspoons snipped chives or chopped parsley

Ingredient Substitution Guide

Nutritional analysis per serving (6 servings)

154 calories; 11 grams fat; 2 grams saturated fat; 0 grams trans fat; 8 grams monounsaturated fat; 1 gram polyunsaturated fat; 11 grams carbohydrates; 2 grams dietary fiber; 4 grams sugars; 3 grams protein; 306 milligrams sodium

Note: The information shown is Edamam’s estimate based on available ingredients and preparation. It should not be considered a substitute for a professional nutritionist’s advice.

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Onion Tart With Leeks, Capers and Anchovy Recipe (2)

Preparation

  1. Step

    1

    Heat oven to 375 degrees.

  2. Step

    2

    Put olive oil in a wide skillet or heavy-bottomed pot over medium-high heat. When oil is wavy, add onions and cook, stirring, until softened and lightly browned, about 5 to 7 minutes. Season well with salt and pepper.

  3. Step

    3

    Add leeks, garlic and thyme, and cook for another 5 minutes, until leeks are softened but still bright green. Taste and adjust seasoning, then spread mixture on a baking sheet to cool to room temperature.

  4. Step

    4

    Lay pastry round on a rimmed parchment-lined baking sheet. Spread cooled onion mixture over pastry, leaving a 1-inch border. Fold over the border and crimp.

  5. Step

    5

    Sprinkle capers evenly over onion mixture. Arrange anchovy fillets on top.

  6. Step

    6

    Bake for 45 minutes, until the pastry is nicely browned. Cool tart for 5 minutes, then sprinkle the chives on top and cut into wedges to serve.

Ratings

4

out of 5

182

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Private Notes

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Cooking Notes

Erin

Sautéed the anchovies with the onion leek mixture to mellow out the flavors. Worked like a charm, the result was a much more balanced, buttery, and crisp flavor!

R in Vienna,VA

I made this tonight for a family dinner and it was huge hit. A few modifications for preference and what I had on hand : no anchovies, added pancetta and sautéed mushrooms, used TJ’s puff pastry and kept rectangular shape and a tablespoon of grated Parmesan once it was out the oven.

K in LA

Did this as written for a light dinner as we had everything on hand. Was nice but we felt the lightly caramelized onion flavor fought against the anchovy and caper flavor too much. If I were to make it again I would modify it to a point it would become something different.

LN

Found the anchovies really overpowered the onion. Plus this recipe skips on blind baking, hence a soggy bottom and the slice falling apart when playing.I would skip the anchovies and capers, blind bake, add eggs to the onion mixture and top with goat's cheese - a quiche, basically.

Suzy

Made this tonight, added mushrooms, deleted anchovies, topped with Parmesan Reggiano. Didn’t hold together, needed an egg mixture to hold it all together ((like a quiche).

Amanda G

I’m a vegetarian, so I substituted kalamari olives for the anchovies. This was okay but there may be better substitutions such as thinly sliced tempeh. My spouse liked it. Any other vegetarian substitutions that you have tried or suggest.

susanna

Also good with red miso in place of the anchovies

M

Flavours work great together. Texturewise, the final result felt a bit loose and I wanted something saucy to hold it together. Next time I think I’ll caramelise the onions until fudgy then add leeks on top and see if that does the trick!

Lynn

Like others I cooked the anchovies with the onions and leeks. I didn’t include capers as it’s not my favourite but overall the dish was delicious and I thought the anchovies were a good contract to the leeks and onions. Would make again and as others said, a great side dish to a main dish, or a good potluck add

Gina Corsun

My husband and I really liked this. I made it as written and served with salad and white wine. I wondered if it would taste good with feta and perhaps potatoes. I like the idea of adding egg. My husband liked the puff pastry crust and suggested that it would be good as written as a side with roasted chicken.

BB

Made exactly as written. The anchovies make it particularly salty, but a delicious meal nonetheless.

Theresa Maier

Excellent flavor. I used garden fresh leeks, and paid attention to saute for only the five minutes suggested. Had fresh thyme, and wonderful white anchovies. I used puff pastry, and the parchment paper made this a breeze. Paired this with lollipop lamb chops and Greek salad loaded with feta, black olives, heirloom tomatoes, cukes, romaine in lemon olive oil. we're having this again....

Jane

I made this for a root vegetable-themed dinner party and it was a HUGE hit. The filling made enough to fill two puff pastries. I made without anchovies and just doubled the capers, and sprinkled parsley on top. 10/10 and easy, will make as an app for future parties!

Suzy Young

Wonderful. Made it with a blind baked pastry but will try with puff pastry next time. Goats cheese scattered on top was a lovely addition and anchovies were great but everybody said more would have been better. I think I'd add the anchovies to the onion mixture as well, to get more of the flavour

Christina

We made this for dinner on Friday during lent and loved it. Not for everyone but we will make it again exactly as written for no meat Fridays. Used puff pastry and cooked on a pizza pan with tiny air holes in the pan. The crust was perfect. Will also try with other ingredients. The cooling the mixture before adding to the puff pastry was key. The crust was airy and light.

Kerry

Really like the recipe but think some tweaks can improve it. As others suggested, I minced the anchovies and added them with the leeks; also made as a rectangular and put pan on pizza stone. Got excellent browning on bottom. To up the flavor, I crumbled blue cheese on top for the last five minutes of baking. Flavor good but still a bit flat. May try lemon zest to make up for mixing in anchovies…and there will be a next time. Served with orange, avocado, almond, and vinaigrette green salad.

mmarcus

Isn't this a variant of Pissaladière from the area of Nice?Nice clear recipe for it.

Stu

Anchovies and capers are salty enough without the addition of more salt in step 2. The whole thing becomes a big salt bomb. I put the baking sheet on a pre-heated pizza stone to get the crust to cook through, and it worked.

RG

Not to hijack the original recipe, but this mixture sounds like it would make a great quiche. I'm going to follow the recipe but instead of adding to puff pastry, add to a basic custard (I'll use 1 cup 1/2 & 1/2 and 2 eggs) and pour into a pie shell. I'll report back.

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Onion Tart With Leeks, Capers and Anchovy Recipe (2024)
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