Print

Golden Sweet Onion Tart with Gruyere Recipe Delight

Print Recipe

Ingredients

Scale
  • For the Pastry:
  • 2 cupsall-purpose flour
  • ½ tspkosher salt
  • 1 tbspsugar
  • 12 tbspcold unsalted butter, diced
  • ½ cupice water
  • For the Topping:
  • 1¼lbs sweet onions (about3medium), thinly sliced
  • 1 cupshredded Gruyère cheese
  • 3 tbspunsalted butter, diced
  • 1½ tspfresh thyme, minced
  • 2 tspfresh chives, minced
  • 1 tbspheavy cream
  • 1 tspkosher salt

Instructions

  1. Begin by preparing the tart dough. In a food processor, combine the all-purpose flour, sugar, and kosher salt, pulsing them together until well mixed. Next, add the cold, diced unsalted butter into the processor. Pulse it in until the butter pieces reach a pea-size texture, which is crucial for creating that dreamy, flaky crust. Slowly drizzle the ice water while pulsing the mixture, stopping when the dough begins to come together.
  2. Take the dough out and shape it into a ball. Wrap it tightly in plastic wrap and let it chill in the refrigerator for an hour.
  3. Once the dough has chilled, preheat your oven to 400°F (200°C) and prepare your baking pan. Line a sheet pan with parchment paper. Roll out the dough on a floured surface between two sheets of wax paper until it’s slightly larger than your tart pan. Chill again for about 15 minutes.
  4. With your tart shell ready, fill it with the Gruyère cheese, minced thyme, and chives. Layer the thinly sliced sweet onions on top. Brush lightly with heavy cream, dot with diced butter, and sprinkle kosher salt.
  5. Bake for approximately 40 minutes or until the onions are tender and the crust is golden brown. Let cool before slicing.

Notes

For an extra flaky crust, consider freezing the butter before dicing it and using cold utensils while working with the dough.

Nutrition

Find it online: https://www.delicetreats.com/golden-sweet-onion-gruyere-tart/