Caramelized Onion and Goat Cheese Tarts in 3 Easy Steps Recipe
Introduction
These caramelized onion and goat cheese tarts are a perfect blend of sweet, tangy, and flaky goodness. With just a few simple ingredients and easy steps, you’ll create a delicious appetizer or light meal that feels fancy but is totally achievable at home.

Ingredients
- 1 sheet puff pastry (thawed but still cold)
- 2 large onions, thinly sliced (yellow or sweet)
- 2 tablespoons olive oil
- 1 tablespoon butter
- 1 teaspoon sugar
- 1 teaspoon balsamic vinegar
- 4 oz goat cheese, crumbled
- 1 teaspoon fresh thyme leaves
- Salt and pepper to taste
Instructions
- Step 1: Heat olive oil and butter in a large pan over medium heat. Add sliced onions, sugar, salt, and pepper. Cook without stirring constantly, letting onions caramelize for about 15 minutes while stirring occasionally. Add balsamic vinegar and thyme, then cook another 5 minutes until onions are jammy and sweet.
- Step 2: Roll out the puff pastry on a lightly floured surface and cut into 6 rectangles. Spread the caramelized onions evenly over each piece, leaving a border for the edges. Crumble goat cheese on top, and sprinkle with a little extra thyme.
- Step 3: Bake tarts in a preheated 400°F oven for about 15 minutes until pastry is golden and puffed and cheese is just starting to melt. Let cool slightly before serving.
Tips & Variations
- Pat caramelized onions gently with paper towels to remove excess moisture and prevent soggy pastry.
- Chill assembled tarts in the fridge for 10 minutes before baking for extra flaky layers.
- Swap goat cheese with feta for saltier flavor or brie for creaminess.
- Add sautéed mushrooms or roasted garlic to the onions for extra depth.
- Drizzle honey over the assembled tarts before baking for a sweet-savory twist.
Storage
Store leftover tarts in an airtight container in the refrigerator for up to 2 days. To reheat, warm them in a 350°F oven for 5-7 minutes to restore crispiness. Avoid microwaving to keep the pastry flaky. A fresh sprinkle of thyme after reheating adds a lovely aroma.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I freeze these tarts?
Freezing is not recommended as goat cheese changes texture and becomes crumbly once thawed. It’s best to make and enjoy them fresh for optimal flavor and texture.
Can I use store-bought caramelized onions?
You can, but homemade caramelized onions offer much richer and sweeter flavor. If using store-bought, enhance them with a splash of balsamic vinegar and fresh thyme to brighten the taste.
How do I keep the pastry from getting soggy?
Drain excess moisture from the caramelized onions by patting them with paper towels before assembling. Also, chilling the tarts before baking helps the pastry stay flaky and crisp.
PrintCaramelized Onion and Goat Cheese Tarts in 3 Easy Steps Recipe
These irresistible caramelized onion and goat cheese tarts combine the sweetness of slow-cooked onions with tangy creamy goat cheese on a flaky puff pastry base. Easy to make in just three simple steps, these tarts are perfect for appetizers, snacks, or a light meal, delivering a gourmet taste with minimal effort.
- Prep Time: 20 minutes
- Cook Time: 20 minutes
- Total Time: 40 minutes
- Yield: 6 tarts 1x
- Category: Appetizer
- Method: Baking
- Cuisine: French
- Diet: Vegetarian
Ingredients
For the Tarts
- 1 sheet puff pastry (thawed but still cold)
- 2 large onions, thinly sliced (yellow or sweet)
- 2 tablespoons olive oil
- 1 tablespoon butter
- 1 teaspoon sugar
- 1 teaspoon balsamic vinegar
- 4 oz goat cheese, crumbled
- 1 teaspoon fresh thyme leaves
- Salt and pepper to taste
Instructions
- Caramelize the Onions: Heat olive oil and butter in a large pan over medium heat. Add thinly sliced onions, sugar, salt, and pepper. Cook without stirring constantly, allowing onions to caramelize by stirring every 5 minutes. After about 15 minutes, when onions turn golden, add balsamic vinegar and fresh thyme leaves. Continue cooking for another 5 minutes until onions become jammy and sweet. Add a splash of water if onions start to stick to the pan to deglaze.
- Assemble the Tarts: Roll out the puff pastry on a lightly floured surface and cut into 6 rectangles. Spread caramelized onions evenly over each piece, leaving a small border around edges. Generously crumble goat cheese over the onions and sprinkle a little extra fresh thyme on top.
- Bake to Perfection: Preheat oven to 400°F (200°C). Place the assembled tarts on a baking sheet and bake for 15 minutes, or until the puff pastry is golden brown and puffed, and the goat cheese starts to melt and brown slightly. If needed, continue baking in 2-minute increments to avoid burning. Allow to cool slightly before serving.
Notes
- Pat caramelized onions dry with paper towels before assembling to avoid soggy pastry.
- Chill assembled tarts in the fridge for 10 minutes before baking to help pastry remain flaky.
- Use fresh thyme for best flavor; if using dried, crush it between your fingers first.
- Spread onions evenly up to the edges of the pastry for consistent flavor.
- For leftovers, store tarts in an airtight container for up to 2 days and reheat in a 350°F oven for 5-7 minutes to crisp up.
Keywords: caramelized onion tart, goat cheese tart, puff pastry tart, easy appetizer, French appetizer, vegetarian tart

