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Crisp-Edged Leek & Comté Savory Clafoutis (Paris-Café Breakfast Slice) with Little Mustard-Greens Salad

Crisp-Edged Leek & Comté Savory Clafoutis (Paris-Café Breakfast Slice) with Little Mustard-Greens Salad

This is my Paris café morning, baked at home: a custardy, clafoutis-style slice with sweet leeks, nutty Comté, and a crisp, bronzed edge you can hear when you cut it. It’s make-ahead friendly, not fussy, and it loves a sharp little salad on top—peppery greens, Dijon, and a quick hit of lemon to keep the richness honest.

Camille Roux
Camille Roux
Prep: 20 minutes
Cook: 40 minutes
6
easy
breakfast
paris-cafemake-aheadleekssavory-custard+1

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Ingredients

  • 2 large Leeks (white + light green parts)(about 600–700 g whole; cleaned well and thinly sliced)
  • 2 tbsp Unsalted butter(plus more for greasing the dish)
  • 1 tbsp Olive oil(for the leeks)
  • 1 tsp Kosher salt(plus more to taste)
  • 1/2 tsp Black pepper(freshly ground, plus more to finish)
  • 1 tsp Fresh thyme leaves(optional but excellent)
  • 4 large Eggs
  • 1 1/4 cups Whole milk(or 2% in a pinch)
  • 1/2 cup Crème fraîche(sour cream works, but crème fraîche stays silkier)
  • 2 tsp Dijon mustard(for the custard)
  • 1/2 cup All-purpose flour(65 g)
  • 1/2 tsp Baking powder
  • 1/8 tsp Ground nutmeg(a small pinch)
  • 1 1/4 cups Comté cheese, grated(about 120–140 g; Gruyère is fine)
  • 2 tbsp Parmigiano-Reggiano, finely grated(for the top crust)
  • 1 pinch Flaky salt(to finish)
  • 2 packed cups Baby arugula or watercress(for the salad garnish)
  • 4 small Cornichons(finely chopped (optional but very café))
  • 1 1/2 tbsp Lemon juice(for the salad)
  • 2 tbsp Extra-virgin olive oil(for the salad)
  • 1 tsp Dijon mustard(for the salad dressing)
  • 1/2 tsp Honey(optional; rounds the bite)
  • 1/4 tsp Kosher salt(for the salad, to taste)
  • 1–2 tbsp Water(Splash to deglaze if leeks brown too fast)

Instructions

  1. 1

    Heat the oven to 425°F / 220°C. Generously butter an 8x8-inch (20x20 cm) baking dish (or a 9-inch deep pie dish) with 2 tbsp Unsalted butter. Set it on a sheet pan—insurance against drips and it boosts bottom heat for crisp edges.

    5 min

    Tip: Butter is not a garnish. The buttered sides are what give you that café-style bronzed rim.

  2. 2

    Cook the leeks: In a large skillet, melt 2 tbsp Unsalted butter with 1 tbsp Olive oil over medium heat. Add 2 large Leeks (white + light green parts), 1 tsp Kosher salt, 1/2 tsp Black pepper, and 1 tsp Fresh thyme leaves. Cook, stirring often, until very soft and sweet with just a hint of golden color, 10–14 minutes. If they start to brown too fast, splash in 1–2 tbsp Water and keep going.

    14 min

    Tip: You’re not caramelizing aggressively—you’re sweating them until jammy. Raw-ish leeks in custard taste sharp and squeaky. Don’t do it.

  3. 3

    Whisk the custard: In a big bowl, whisk 4 large Eggs, 1 1/4 cups Whole milk, 1/2 cup Crème fraîche, and 2 tsp Dijon mustard until smooth. Add 1/2 cup All-purpose flour, 1/2 tsp Baking powder, 1/8 tsp Ground nutmeg, and whisk until no dry pockets remain.

    4 min

    Tip: This is clafoutis-style: thin batter + set custard. No stand mixer, no drama.

  4. 4

    Fold in the good stuff: Stir in the cooked leeks and 1 cup of the grated Comté. Pour into the buttered dish. Top with remaining 1/4 cup Comté and 2 tbsp Parmigiano-Reggiano, finely grated.

    3 min

    Tip: Cheese on top = the crackly crust. That’s the payoff.

  5. 5

    Bake hot, then finish: Bake at 425°F / 220°C for 15 minutes, then reduce to 375°F / 190°C and bake until puffed, deeply golden at the edges, and the center gives a gentle wobble (not a slosh), 18–25 minutes more.

    40 min

    Tip: Visual cue: a set custard jiggles like a cheesecake; it shouldn’t ripple like soup. If it browns too quickly, tent loosely with foil for the last 10 minutes.

  6. 6

    Rest (non-negotiable): Let the clafoutis rest 15 minutes before slicing. It will settle and slice clean without squeezing out its custard.

    15 min

    Tip: Let time do the work. Cut too early and it goes tight like a bad alibi—wet, compressed, and sad.

  7. 7

    Make the quick salad garnish: Toss 2 packed cups Baby arugula or watercress with 4 small Cornichons (if using). Whisk 1 1/2 tbsp Lemon juice, 2 tbsp Extra-virgin olive oil, 1 tsp Dijon mustard, 1/2 tsp Honey (if using), and 1/4 tsp Kosher salt. Dress lightly and finish with 1/2 tsp Black pepper.

    5 min

    Tip: Keep it sharp. The salad is your counterpoint to all that leek-and-cheese richness.

  8. 8

    Serve: Slice the clafoutis and crown each piece with a small tumble of salad. Finish with 1 pinch Flaky salt.

    2 min

    Tip: This eats like a café breakfast: custardy middle, crisp rim, salad bite. Hot coffee required; suffering not included.

Chef's Notes

Why it works: the high-heat start sets the edges fast (crisp rim), then the lower temp finishes the custard gently (lacy, tender set). Cami’s shortcut note: Bake it the night before, cool completely, then refrigerate. In the morning, rewarm slices on a sheet pan at 350°F / 175°C for 8–12 minutes—edges re-crisp, center stays custardy. Don’t skip this: cook the leeks until truly soft and sweet; undercooked leeks will leak water and make the custard loose.

Frequently Asked Questions

How long does Crisp-Edged Leek & Comté Savory Clafoutis (Paris-Café Breakfast Slice) with Little Mustard-Greens Salad take to make?

Crisp-Edged Leek & Comté Savory Clafoutis (Paris-Café Breakfast Slice) with Little Mustard-Greens Salad takes about 1 hour total. That includes 20 minutes of prep and 40 minutes of cooking.

How many servings does this recipe make?

This recipe makes 6 servings.

What skill level is needed for Crisp-Edged Leek & Comté Savory Clafoutis (Paris-Café Breakfast Slice) with Little Mustard-Greens Salad?

This recipe is rated easy — it's beginner-friendly and straightforward.

What ingredients do I need for Crisp-Edged Leek & Comté Savory Clafoutis (Paris-Café Breakfast Slice) with Little Mustard-Greens Salad?

The main ingredients are: Leeks (white + light green parts), Unsalted butter, Olive oil, Kosher salt, Black pepper, Fresh thyme leaves, Eggs, Whole milk, Crème fraîche, Dijon mustard, All-purpose flour, Baking powder, Ground nutmeg, Comté cheese, grated, Parmigiano-Reggiano, finely grated, Flaky salt, Baby arugula or watercress, Cornichons, Lemon juice, Extra-virgin olive oil, Dijon mustard, Honey, Kosher salt, Water.

What type of meal is Crisp-Edged Leek & Comté Savory Clafoutis (Paris-Café Breakfast Slice) with Little Mustard-Greens Salad?

Crisp-Edged Leek & Comté Savory Clafoutis (Paris-Café Breakfast Slice) with Little Mustard-Greens Salad is categorized as: breakfast.