Desserts ›

Onion and Tarragon Tart

by Editorial Staff

Summary

Prep Time 20 mins
Cook Time 1 hr
Total Time 1 hr 20 mins
Course Baking
Cuisine European
Servings (Default: 1)

Ingredients

  • 200 g flour
  • 150 g butter, salted, cut into small pieces
  • 1 medium egg yolk
  • 50 g butter, salted
  • 500 g onion (s), thinly sliced
  • 2 spring onion (s), sliced
  • 150 ml double cream
  • 150 ml whole milk
  • 3 egg (s)
  • 2 tablespoon tarragon
  • 50 g parmesan, rated
  • salt and pepper
  • Beans or peas, dry, for blind baking
Onion and Tarragon Tart
Onion and Tarragon Tart

Instructions

  1. Mix the flour, butter and egg yolks together and knead quickly to form a dough. Roll out and line a fruit cake tin with it. Chill in the refrigerator.
  2. Preheat the oven to 200 degrees. Cover the dough with parchment paper cut to size, cover with peas or beans and bake blind for 15 minutes. Remove the topping and bake for another five minutes. Take out of the oven.
  3. In the meantime, fry the onions in the remaining butter for about six to eight minutes until soft. Beat the crème double, milk, eggs, tarragon, parmesan, salt and pepper. Put the onions on the batter and pour the mixture over them. Bake in the oven for about 30 minutes until the surface is golden brown.
Editorial Staff

About Editorial Staff

The Boss Kitchen editorial staff oversees content review, fact-checking, and recipe verification across the site. Published articles pass through the editorial team before going live, ensuring ingredient lists, techniques, cooking times, and nutritional claims hold up in a home kitchen. The team coordinates contributions across the site writers, handles reader corrections, and maintains consistency in measurement conventions, safety guidance, and dietary labeling. Posts under this byline typically represent team-reviewed reference material, site announcements, or editorial roundups rather than individual-author features, and they are held to the same sourcing standards as bylined recipe and product coverage.

Get FREE Recipe Gifts now. Or latest free cooktops from our best collections.

Disable Ad block to get all the secrets. Once done, hit any button below