Go Back
–+ servings
french onion tartlets

Delicious French Onion Tartlets for Your Next Gathering

These French onion tartlets feature caramelized onions and creamy cheese in crispy fillo shells, perfect for gatherings.
Print Recipe Pin Recipe
Prep Time 10 minutes
Cook Time 20 minutes
Cooling Time 5 minutes
Total Time 30 minutes
Servings: 12 tartlets
Course: Appetizers
Cuisine: French
Calories: 150
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Filling
  • 2 tablespoons unsalted butter Adds richness and flavor to the filling.
  • 3 medium yellow onions Finely chopped for a sweet and savory taste.
  • to taste salt Enhances flavor; adjust to personal taste.
  • to taste black pepper Enhances flavor; adjust to personal taste.
  • 1 tablespoon fresh thyme leaves Preferred fresh for the best flavor.
  • 0.25 cup dry white wine Can be substituted with vegetable broth for a non-alcoholic version.
  • 4 ounces cream cheese Use full-fat for creaminess.
  • 1 large egg Helps to bind the mixture.
  • 2 tablespoons fresh parsley Adds a fresh pop of color and flavor.
For the Tartlets
  • 12 pieces mini fillo dough shells Provides a light, crispy base.

Equipment

  • Skillet
  • Baking Sheet
  • mixing bowl

Method
 

Step‑By‑Step Instructions
  1. Preheat your oven to 350°F (175°C). Gather mini fillo dough shells from the freezer.
  2. Melt 2 tablespoons of unsalted butter in a medium skillet over medium heat. Add the chopped yellow onions; reduce heat to medium-low and cook for about 10 minutes until soft.
  3. Season the onions with salt and pepper to taste. Continue cooking for an additional 10 minutes, stirring frequently until golden brown.
  4. Stir in fresh thyme leaves and pour in ¼ cup of dry white wine, cooking for an additional 3 minutes until slightly reduced. Remove from heat.
  5. In a bowl, combine the cooled onion mixture with 4 ounces of room temperature cream cheese and 1 beaten large egg. Mix until fully incorporated.
  6. Arrange mini fillo dough shells on a baking sheet. Fill each with one tablespoon of the onion filling.
  7. Bake in the preheated oven for 10-15 minutes until the shells are golden and the filling bubbles slightly.
  8. Allow tartlets to cool for a couple of minutes before serving warm, garnished with fresh parsley.

Nutrition

Serving: 1tartletCalories: 150kcalCarbohydrates: 10gProtein: 3gFat: 10gSaturated Fat: 5gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gCholesterol: 30mgSodium: 150mgPotassium: 100mgFiber: 1gSugar: 1gVitamin A: 500IUVitamin C: 3mgCalcium: 50mgIron: 1mg

Notes

For best flavor, ensure onions are fully caramelized. Fill shells shortly before baking and avoid overfilling to prevent mess during baking.

Tried this recipe?

Let us know how it was!