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Caramelized Onion and Goat Cheese Tartlets

August 5, 2025 by Emma Delaney

Buttery, flaky tart shells filled with creamy goat cheese and sweet golden caramelized onions, finished with a sprig of fresh thyme—these elegant mini tartlets are the perfect savory bite for holiday gatherings, brunches, or cozy winter nights. They strike a perfect balance of richness, tang, and sweetness, offering an impressive yet approachable appetizer or light meal.

Why You’ll Love This Recipe

These Caramelized Onion and Goat Cheese Tartlets are a delightful blend of textures and flavors. The sweetness of the caramelized onions complements the tangy goat cheese, all encased in a tender, golden crust. They are ideal for entertaining, easy to make ahead, and always a hit on any appetizer spread. Whether served warm or at room temperature, they’re both rustic and refined.

Ingredients

(Tip: You can find the complete list of ingredients and their measurements in the recipe card below.)

shortcrust pastry sheet (or mini tart shells)
large onions, thinly sliced
olive oil
butter
sugar
goat cheese, softened
large eggs
heavy cream
salt
black pepper
fresh thyme (for garnish)

Directions

Preheat the oven to 375°F (190°C).
If using a pastry sheet, cut it into rounds and press into greased mini tart pans or muffin tins. Prick the bottoms with a fork. Blind bake the crusts for 10 minutes, then set aside.
In a skillet over medium-low heat, warm the olive oil and butter. Add the sliced onions and sugar, stirring occasionally. Cook slowly for 20–25 minutes until the onions are soft, deeply golden, and caramelized. Remove from heat and let cool slightly.
In a mixing bowl, whisk together the eggs, heavy cream, salt, and black pepper until smooth.
Divide the caramelized onions evenly among the tart shells. Crumble the goat cheese on top, then pour the egg mixture over each until just filled.
Bake for 20–25 minutes, or until the filling is set and the tops are lightly golden.
Garnish with fresh thyme sprigs and serve warm.

Servings and timing

Servings: 8 tartlets
Prep Time: 20 minutes
Cook Time: 45 minutes (includes onion caramelizing and baking)
Total Time: 1 hour 5 minutes

Variations

Add herbs: Mix chopped rosemary or thyme into the egg mixture for a more herby flavor.
Use different cheese: Try blue cheese or feta for a sharper flavor alternative to goat cheese.
Sweet-savory twist: Add a few drops of balsamic reduction on top after baking.
Make one large tart: Use a 9-inch tart pan instead of mini tart shells and adjust baking time accordingly.
Add mushrooms: Sautéed mushrooms pair wonderfully with the caramelized onions and add depth.

Storage/Reheating

Store leftover tartlets in an airtight container in the refrigerator for up to 3 days. Reheat in a 350°F (175°C) oven for 8–10 minutes until warmed through. Avoid microwaving, as it can make the pastry soggy. These tartlets are also delicious at room temperature.

FAQs

Can I make these tartlets ahead of time?

Yes, they can be made a day ahead and reheated before serving. You can also caramelize the onions in advance and assemble just before baking.

Can I freeze these tartlets?

Yes, freeze baked and cooled tartlets in a single layer, then transfer to a container. Reheat from frozen in the oven until hot.

Can I use store-bought tart shells?

Absolutely. Ready-made mini tart shells save time and work beautifully in this recipe.

How do I blind bake pastry without weights?

Use a fork to prick the pastry base and line with parchment paper. Fill with dry rice or beans and bake as directed.

Can I substitute the goat cheese?

Yes. Cream cheese, ricotta, or feta can be used, though the flavor will differ.

What onions are best for caramelizing?

Yellow or sweet onions are ideal. They develop a rich flavor when cooked slowly.

Can I make this into a quiche?

Yes, use the same filling in a pie or quiche dish with a full pastry crust for a larger version.

How do I prevent the pastry from getting soggy?

Blind baking the crusts before adding the filling ensures they remain crisp.

What can I serve with these tartlets?

They pair well with a green salad, soup, or a glass of dry white wine.

Are these tartlets vegetarian?

Yes, this recipe is vegetarian as written.

Conclusion

Caramelized Onion and Goat Cheese Tartlets are a versatile, elegant, and flavor-packed dish that works for nearly any occasion. Whether served as a starter, a side, or a centerpiece on a cheese board, they always impress with their rich flavor and attractive presentation. With just a handful of ingredients and a simple technique, you can bring restaurant-quality tartlets to your own table.