Flammkuchen (German Bacon and Onion Flatbread)

The 'Flame Cake' (Tarte Flambée) is a rustic gift from the Alsace region. Originally used to test oven temperature before baking bread: if the thin dough crisped in minutes, the oven was ready. The secret is the yeast-free, paper-thin dough and the combination of rich sour cream (or crème fraîche), sweet onions, and smoky bacon. Light, crispy, and addictive.
🕒 Prep Time 20 mins
🍳 Cook Time 12 mins
Total Time 32 mins
🍽️ Servings 4 servings
🔥 Calories 580 kcal
🌍 Cuisine German-French

Ingredients

Equipment Needed

  • Rolling pin (essential)
  • Parchment paper
  • Mandoline or very sharp knife for onions

Allergen Information

⚠️ Wheat
⚠️ Milk

Instructions

1

Measure flour and mix in salt. Add water and oil, knead quickly into a smooth, elastic dough.

Tip: Don't over-knead; just until combined, or it gets rubbery.
2

Form a ball, coat lightly with oil, and rest at room temperature for 15-20 minutes.

Tip: Resting relaxes the gluten so you can roll it thin without it shrinking back.
3

Preheat oven to max (480-500°F). Slice onions paper-thin (half-moons), dice bacon.

Tip: Onions should be translucent thin to cook fully in the short time.
4

On a floured surface, roll dough into a very thin oval or rectangle (1-2 mm). Place on a parchment-lined baking sheet.

Tip: You should almost see through it! That's the key to crunch.
5

Spread sour cream edge-to-edge. Lightly salt (bacon is salty!) and pepper generously.

Tip: The fat in sour cream protects the dough from drying out.
6

Scatter onions and bacon evenly on top.

Tip: Rendering bacon fat will season the onions and cream.
7

Bake for 10-12 minutes until edges are dark brown and crispy, and bacon is cooked.

Tip: Watch closely; thin dough burns fast!
8

Serve immediately, piping hot, sliced on a board.

Tip: Wait for no one; it's best fresh.

Recipe FAQ

Why is the crust hard?
Too thick or baked too long at low heat. This dough needs 'shock baking': very hot oven, short time.
Can I use yeast?
Original recipes usually don't, resulting in a cracker-like crust. Yeast makes it softer and more bread-like.

Ingredients

  • 2 cups All-Purpose Flour
  • 1/2 cup Warm Water
  • 1 tbsp Olive Oil or Sunflower Oil
  • 1 tsp Salt
  • 1 cup Sour Cream or Crème Fraîche
  • 2 medium Red or Yellow Onions
  • 4 oz Smoked Bacon (diced or strips)
  • 1/2 tsp Freshly Ground Black Pepper