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Tarte A L'oignon Recipe

Tarte A L'oignon
How to make Tarte A L'oignon

Tarte à l'oignon is a fragrant, scrumptious onion tart from the Alsace region in France. The whole dish is typically spiked with thyme, caramalized onion and milk.

  • Total Cook Time 30 mins
  • Prep Time 15 mins
  • Cook Time 15 mins
  • Recipe Servings5
  • Easy

Ingredients of Tarte A L'oignon

  • For Puff Base:
  • 400 gram Flour
  • 20 gram Salt
  • 200 gram Butter
  • 1 litre Water
  • 1000 gram Caramelized onion
  • 15 gram Fresh Thyme
  • 300 mililitres Milk

How to Make Tarte A L'oignon

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1.
Take a bowl and mix flour, salt, butter and water. Make a dough. Then add 1700 gm butter and roll seven times.
2.
Then cut in a round shape for onion tart. Spread the puff base on a baking tray with lines silpat.
3.
Apply milk on the tart base evenly with brush. Put the ring cutter over the tart (make sure to leave 1cm boarder around the mixture).
4.
Spread the caramelized onion evenly inside the ring cutter area.
5.
Bake the tart in oven for 30 minutes at 180℃. Increase the temperature to 200℃ and bake for 10 more minutes or until the tart turn to golden brown colour.
6.
Remove the tart from the oven and rest to cool. Sprinkle fresh thyme leaves at the end.

Key Ingredients: For Puff Base:, Flour, Salt, Butter, Water, Caramelized onion, Fresh Thyme, Milk

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