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5 from 4 votes
Close up of a French onion Tart made on puff pastry
French Onion Tart:
Prep Time
30 mins
Cook Time
20 mins
Total Time
50 mins

French Onion Tart:  Tender, sweet caramelized onions woven in-between a tangy goat cheese filling all atop flaky puff pastry for an easy yet elegant appetizer for entertaining.

Course: Appetizer, Main Course
Cuisine: American, French
Keyword: Easy french onion tart, easy onion tart
Servings: 6
Calories: 416 kcal
Author: Michele Hall
  • 3 cups onions about 3 large onions
  • 2 tbsp olive oil
  • 1 sheet puff pastry
  • 4 ounces goat cheese
  • 1/2 cup heavy cream
  1. preheat oven to 375°

  2. Peel the onion and then slice the onion into 1/4" slices.  Try to have the onions be of consistent widths so the cook evenly.

  3. Heat a skillet to medium and place the onions in the pan.  Slow cook them on medium heat until they are deep brown in color. Stir them often.  Resist the urge to raise the heat to high, the onions will burn. This will take about 15-20 minutes.

  4. Remove the puff pastry from the box and follow the instructions on the box for thawing.

  5. Roll out the puff pastry.

  6. Roll 1/4" over twice. Crimp the edges of the pastry making a crust edge.

  7. Spread evenly cooked onions over the tart.

  8. Mix 4 ounces of goat cheese and heavy cream and stir until softened and a liquid texture.  You will then pour this over the onions on the pastry.

  9. Spread the goat cheese evenly over the entire top.

  10. Place on a baking sheet and bake for 15-20 minutes.  Check tart at 15 minutes to see the color of the edges.  Remove when its golden brown.

  11. The pastry may puff up in the middle, don't panic.  Take a fork and puncture the bubble and it will immediately deflate.

  12. Serve in slices or squares immediately.  Can also be served at room temperature.