The Ultimate Umami Forestière Quiche

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The Ultimate Umami Forestière Quiche

This vegetarian quiche features a lightened custard made of equal parts milk and cream, enriched with extra egg yolks. It swaps traditional mushrooms for sautéed Parisian slices and adds flash-toasted cherry tomatoes and Emmental cheese for a sophisticated, umami-packed flavor profile.

Quick Info

Prep Time
20 min
Active Time
30 min
Total Time
1 hr 5 min
Difficulty
Medium
Serves
6
Cost Level
$$
Make-Ahead
Partially
Cuisine
Belgium

The Balance of Light and Rich

By splitting the dairy between milk and heavy cream, we reduce the overall heaviness of the dish without sacrificing the classic French 'Migaine' texture. The addition of four egg yolks provides the necessary fat and protein to ensure a stable, velvety set.

Parisian mushrooms, when sliced and sautéed until golden, offer a familiar and elegant earthiness. Flash-toasting the cherry tomatoes before baking caramelizes their natural sugars, adding a concentrated burst of umami that complements the white miso in the custard.

Emmental offers a milder, nuttier backdrop allowing the delicate notes of nutmeg and the savory depth of the soy-glazed mushrooms to shine through.

Estimated nutrition per serving

Estimated from ingredient weights, not lab-tested.

Calories
509
Protein
17g
Fat
40g
Carbohydrates
23g

Ingredients

Recipe yields 6 servings

For the Pastry Shell

230 g fresh puff pastry
store-bought is fine

For the Mushroom & Tomato Base

250 g Parisian mushrooms
sliced for elegant texture
100 g cherry tomatoes
halved and flash-toasted
30 g unsalted butter
for searing
15 g soy sauce
for deglazing
2 g smoked paprika
for smoky depth

For the Lightened Miso Custard

150 g heavy cream
150 g whole milk
2 large whole eggs
4 large egg yolks
15 g white miso paste
the secret umami ingredient
1 g fresh nutmeg
1 g white pepper

For Assembly

150 g Emmental cheese
grated

Instructions

Prepare the Shell

  1. 1

    Blind-Bake the Pastry

    Preheat oven to 200°C / 400°F. Line a 9-inch tin with pastry, prick the bottom, and bake with weights for 10-12 minutes until edges are golden.

Prepare Fillings

  1. 2

    Sauté and Toast

    Sauté sliced Parisian mushrooms in butter over high heat until browned. Deglaze with soy sauce and paprika. In the same pan, flash-toast halved cherry tomatoes cut-side down for 1-2 minutes until caramelized.

  2. 3

    Whisk the Custard

    Dissolve miso into the milk and cream mixture. Whisk in 2 whole eggs, 4 yolks, nutmeg, and white pepper until smooth.

Final Bake

  1. 4

    Assemble and Bake

    Layer mushrooms, toasted tomatoes (cut-side up), and Emmental in the shell. Pour custard over and bake at 190°C / 375°F for 25-30 minutes until the center has a slight wobble.

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Tips & Tricks

the tomatoes are making the crust soggy:

Flash-toast them cut-side down first. This sears the surface and locks in juices, and always place them cut-side up in the tart shell.

you want a more intense mushroom flavor:

Make sure the Parisian mushrooms are sliced and sautéed on high heat until they are deeply browned. Don't crowd the pan!

Frequently Asked Questions

Will the miso make this taste like Japanese soup?

Not at all. At just 15 grams for the whole quiche, the white miso acts as a hidden flavor enhancer—like adding a pinch of MSG or aged Parmesan.

Is this quiche very heavy?

We've swapped the heavy cream-only base for a 50/50 mix of milk and cream. This makes the quiche feel lighter on the palate, while the extra egg yolks ensure it remains incredibly silky.

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