Flammkuchen Alsatian Tart

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Flammkuchen, also known as Tarte Flambée, is a beloved specialty from the Alsace region along the German-French border, traditionally baked in wood-fired ovens. This ultra-thin flatbread carries a creamy crème fraîche base scattered with smoky bacon lardons and paper-thin onions, blistered at intense heat until the crust shatters. It is a rustic appetizer or light main that comes together in under an hour with pantry staples.

Nutrition Facts

Per serving (estimated)

• 485 kcalCalories
• 26 gFat
• 13 gSaturated Fat
• 44 gCarbs
• 3 gFiber
• 6 gSugar
• 16 gProtein
• 640 mgSodium
• 310 mgPotassium
• 85 mgCalcium
• 3 mgIron
• 5 mgVitamin C
• 190 mcgVitamin A

Ingredients

For the dough

• 250 g all-purpose flour
• 1/2 tsp fine sea salt
• 1 tsp active dry yeast
• 1 tbsp olive oil
• 140 ml lukewarm water
• 1 tsp sugar

For the topping

• 180 g crème fraîche
• 80 g fromage blanc or sour cream
• 150 g smoked bacon lardons (or thick-cut bacon, diced)
• 2 medium yellow onions, peeled and very thinly sliced
• 1/2 tsp freshly grated nutmeg
• Freshly ground black pepper, to taste
• Flaky sea salt, to taste
• 2 tbsp chopped fresh chives, for garnish

Directions

1. In a small bowl, stir the yeast and sugar into the lukewarm water and let stand for 5 minutes until foamy. In a large bowl, whisk the flour and salt, then make a well in the center.
2. Pour the yeast mixture and olive oil into the well and stir with a wooden spoon until a shaggy dough forms. Turn out onto a lightly floured surface and knead for 6 to 8 minutes until smooth and elastic, then place in an oiled bowl, cover, and let rest for 30 minutes at room temperature.
3. Meanwhile, position a rack in the lower third of the oven and place a pizza stone or heavy baking sheet inside. Preheat the oven to its highest setting, 250 to 275°C (480 to 525°F), for at least 30 minutes. Cook the lardons in a dry skillet over medium heat for 3 to 4 minutes until lightly rendered but not crisp; drain on paper towels.
4. In a small bowl, whisk together the crème fraîche and fromage blanc with the nutmeg and a generous grind of black pepper. Divide the rested dough into 4 equal portions and roll each on parchment paper into an oval about 3 mm thick, roughly 28 by 18 cm.
5. Spread about 2 heaped tablespoons of the crème fraîche mixture over each oval, leaving a 1 cm border. Scatter the sliced onions evenly over the top, followed by the par-cooked lardons, and finish with a light sprinkle of flaky sea salt.
6. Slide the parchment with one tart directly onto the preheated stone or baking sheet and bake for 10 to 12 minutes, until the edges are deeply golden and blistered and the onions are just turning translucent at the tips.
7. Repeat with the remaining tarts. Scatter each hot Flammkuchen with fresh chives, slice into strips, and serve immediately while the crust is crackling and crisp.

Cook’s Notes

• Get the oven as hot as possible; a pizza stone preheated for at least 30 minutes mimics the traditional wood-fired oven and gives the signature blistered bottom.
• Roll the dough genuinely thin, almost translucent; a thick base will turn bready rather than crisp and crackly.
• Pre-cooking the lardons just until they release their fat prevents greasy puddles on the tart while keeping smoky flavor.
• Resist loading extra toppings: traditional Flammkuchen is deliberately sparse so the crust stays shatteringly crisp.
• Bake and serve one tart at a time if your oven is small, since the parchment needs direct contact with the hot stone for the best rise and char.

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