Flammkuchen
Alsatian-German flame cake — paper-thin crispy dough with crème fraîche, lardons and onion.
About This Recipe
Flammkuchen (tarte flambée in French) originates from the Alsace region on the border of France and Germany. It was originally made by bakers to test their oven temperature — the thin, crispy flatbread was topped simply with crème fraîche, sliced onion, and smoked lardons, then baked in a screaming-hot oven. It is devastatingly simple and one of the best flatbreads in existence.
Ingredients
Serves 2
- 200 gplain flour
- 100 mlwater
- 2 tbspolive oil
- ½ tspsalt
- 150 mlcrème fraîche
- 150 gsmoked lardons or bacon
- 2 mediumonions(very thinly sliced)
- black pepper
Instructions
- 1
Make the dough
Mix flour, water, oil, and salt to form a smooth dough. Knead for 3 minutes. Rest 15 minutes.
- 2
Roll out very thin
Roll dough as thin as possible — 2mm or less. Transfer to a baking sheet or pizza stone.
The thinner you roll it, the crispier the result. Aim for almost transparent.
- 3
Top and bake
Spread a thin layer of crème fraîche. Scatter sliced onion and lardons. Season with pepper. Bake at 250°C for 10–12 minutes until edges are dark and crispy.
- 4
Serve immediately
Cut into rectangles. Eat immediately — it is best directly from the oven.
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Pro Tips
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Maximum oven temperature is essential.
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Do not overload toppings — it should be sparse, not piled high.
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Taste and adjust salt at the very end — flavors concentrate as liquids reduce, and a final pinch of flaky salt sharpens the whole dish.
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Mise en place pays for itself: chop, measure and pre-mix everything before the heat goes on, especially for any step that moves fast.
Variations
- •
Vegetarian: caramelised onion with mushrooms and Gruyère.
- •
Sweet version: crème fraîche with apple and cinnamon sugar.
- •
Spicier: add a finely chopped fresh chile or a teaspoon of crushed Aleppo/Urfa pepper to the aromatics for warm, layered heat instead of a single sharp hit.
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Lighter: reduce the fat by a third and finish with a squeeze of citrus or a splash of vinegar to keep brightness without losing body.
Storage
Eat immediately. Does not keep well.
History & Origin
Flammkuchen is rooted in German home cooking where hearty grains, root vegetables and braised meats sustain through long winters. Regional variations are the rule rather than the exception — neighboring villages, families and even individual cooks adapt the dish to what's in the pantry and what's in season, which is why no two versions taste exactly alike and why the recipe has stayed alive for so long.
Frequently Asked Questions
Can I make this ahead of time?
Yes — most of the components can be prepared up to a day in advance and refrigerated separately. Reheat gently and assemble just before serving so textures stay distinct.
What can I substitute if I don't have all the ingredients?
Stay close to the role each ingredient plays: swap aromatics for similar ones (shallot for onion, lime for lemon), and keep the fat-acid-salt balance intact. Spice blends can usually be approximated with what's in the cupboard.
How do I know it's authentic?
Authenticity sits on a spectrum — what matters more is honoring the technique and balance of flavors. If the dish tastes harmonious and respects how cooks in its home region would build it, you're on solid ground.
Why didn't mine turn out as expected?
The two most common issues are under-seasoning and rushing the heat. Taste as you go, season in layers, and give aromatics and proteins the time they need to develop color and depth before moving on.
Nutrition Facts
Per serving (350g / 12.3 oz) · 2 servings total
Time Summary
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