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Caramelized Red Onion Tarts, Balsamic Vinegar

These little tarts are perennial favorites. The melting Balsamic sour-sweetness of the onions beautifully complements the egg and bacon filling - both held within their flaky pastry case.

  • Cuisine type: French
  • Difficulty: easy
  • Budget: $$$$$
  • Caramelized Red Onion Tarts, Balsamic Vinegar


  • - 1 cup all-purpose flour
  • - Pinch of salt
  • - ½ cup unsalted butter, cut-up and softened
  • - 2 to 3 tbsp. cold water
  • - 2 tbsp. Maille Extra Virgin Olive Oil
  • - 3 large red onions, thinly sliced
  • - 2 tbsp. Maille Balsamic Vinegar
  • - 1 cup grated parmesan cheese
  • - ⅓ cup soft cheese (such as mascarpone, ricotta or feta)
  • - 1 large egg, slightly beaten
  • - 5 oz. thick-cut bacon, crisp-cooked and crumbled

Eric Gauthier

Head chef and owner of Ateliers & Saveurs, Éric Gauthier created in 2008 an unique concept in Québec: gather in one place cooking, cocktails and wine tastings classes available for everyone. Eager for discoveries, Éric, full of energy, gets his inspiration through his meetings and journeys to bring soul to his creations.


*Don’t have individual tart pans? You can use a 9 in. tart pan instead.

  1. Combine flour with salt in large mixing bowl. Cut in butter with pastry blender or two knives until mixture is size of small peas. Stir in just enough cold water to form a dough. Wrap in plastic wrap and refrigerate until firm, about 30 minutes.
  2. Preheat oven to 400°.
  3. Grease 4 (4 ½ in.) individual tart pans*. Divide dough into 4 portions and press onto bottom and up sides of prepared pans. Line with aluminum foil or parchment paper and fill with pie weights or dry beans partially up sides. Bake until golden brown, about 15 minutes. Remove to wire rack to cool.
  4. Heat Maille Olive Oil in large skillet and cook onion over medium-low heat, stirring occasionally, until onions are golden brown, about 20 minutes. Stir in Maille Balsamic Vinegar; set aside.
  5. Beat cheeses with egg, then stir in bacon. Fill baked tarts with egg mixture, then top with onion mixture.
  6. Bake until knife inserted in centers comes out clean, about 20 minutes. Drizzle, if desired, with Maille Walnut Oil.

To serve

Drizzle, if desired, with Maille Walnut Oil.

Prep Time:
35 minutes
Cooking Time:
25 minutes
newyear, easter, birthday_party
6 people

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