Name: Smoked Gouda and Mushroom Tart with Caramelized Onions
Prep time: 25 min
Cook time: 45 min
Total time: 70 min
Yield: 6 servings
Cuisine: European cuisine
Ingredients: 1 pcs puff pastry (sheet, frozen, thawed); 200 g smoked gouda (shredded or thinly sliced); 250 g mushrooms (cremini or mixed wild mushrooms, sliced); 2 pcs onions (large, thinly sliced for caramelizing); 0.5 cup heavy cream; 1 tbsp thyme (fresh, chopped, plus extra for garnish); 2 tbsp olive oil; 1 tbsp butter; 0.5 tsp salt; 0.25 tsp black pepper (freshly ground)

A golden-brown tart filled with melted smoked Gouda cheese, earthy mushrooms, and sweet caramelized onions sits on a rustic wooden board, ready to be enjoyed.

Indulge in this deeply flavorful tart, a sophisticated yet approachable dish that celebrates the richness of cheese. A flaky, buttery puff pastry crust forms the base, generously topped with sweet, slow-cooked caramelized onions that melt in your mouth. Creamy, smoky Gouda cheese is layered over the onions, melting into a luscious blanket. Earthy sautéed mushrooms add another dimension of umami and texture, creating a harmonious blend of sweet, savory, and earthy notes. Baked until golden and bubbly, this tart is perfect as an elegant appetizer, a light lunch with a side salad, or a delightful addition to a brunch spread. Its comforting nature and irresistible aroma make it a guaranteed crowd-pleaser for any occasion, showcasing the best of dairy-based comfort.

Preparation time: 25 min
Cooking time: 45 min
Total time: 1 hr 10 min
Servings: 6

Instructions

Preparing the Tart

1Preheat oven to 400°F (200°C). Line a baking sheet with parchment paper. If using a tart pan, lightly grease it.
2Unroll the thawed puff pastry onto the prepared baking sheet or press into the tart pan. Score a 1-inch border around the edge of the pastry, being careful not to cut all the way through. Prick the inner area with a fork several times. Bake for 10-12 minutes, or until lightly golden. Remove from oven and set aside.

Caramelizing Onions and Sautéing Mushrooms

1While pastry bakes, heat 1 tablespoon of olive oil and butter in a large skillet over medium-low heat. Add sliced onions and cook slowly for 20-30 minutes, stirring occasionally, until deeply golden brown and caramelized. Season with a pinch of salt.
2In a separate skillet, heat the remaining 1 tablespoon of olive oil over medium-high heat. Add sliced mushrooms and sauté for 5-7 minutes until tender and browned. Season with salt and pepper. Stir in fresh thyme.

Assembling and Baking the Tart

1Spread the caramelized onions evenly over the pre-baked puff pastry within the scored border. Layer the sautéed mushrooms on top of the onions.
2Sprinkle the shredded smoked Gouda cheese generously over the mushrooms. Gently pour the heavy cream over the cheese and vegetables.
3Return the tart to the oven and bake for another 20-25 minutes, or until the cheese is melted and bubbly, and the crust is golden brown and puffed. If the crust starts to brown too quickly, you can loosely tent it with foil.
4Remove from the oven, let it cool for 5-10 minutes before slicing and serving. Garnish with fresh thyme if desired.

Instructions

Preparing the Tart

1Preheat oven to 400°F (200°C). Line a baking sheet with parchment paper. If using a tart pan, lightly grease it.
2Unroll the thawed puff pastry onto the prepared baking sheet or press into the tart pan. Score a 1-inch border around the edge of the pastry, being careful not to cut all the way through. Prick the inner area with a fork several times. Bake for 10-12 minutes, or until lightly golden. Remove from oven and set aside.

Caramelizing Onions and Sautéing Mushrooms

1While pastry bakes, heat 1 tablespoon of olive oil and butter in a large skillet over medium-low heat. Add sliced onions and cook slowly for 20-30 minutes, stirring occasionally, until deeply golden brown and caramelized. Season with a pinch of salt.
2In a separate skillet, heat the remaining 1 tablespoon of olive oil over medium-high heat. Add sliced mushrooms and sauté for 5-7 minutes until tender and browned. Season with salt and pepper. Stir in fresh thyme.

Assembling and Baking the Tart

1Spread the caramelized onions evenly over the pre-baked puff pastry within the scored border. Layer the sautéed mushrooms on top of the onions.
2Sprinkle the shredded smoked Gouda cheese generously over the mushrooms. Gently pour the heavy cream over the cheese and vegetables.
3Return the tart to the oven and bake for another 20-25 minutes, or until the cheese is melted and bubbly, and the crust is golden brown and puffed. If the crust starts to brown too quickly, you can loosely tent it with foil.
4Remove from the oven, let it cool for 5-10 minutes before slicing and serving. Garnish with fresh thyme if desired.

Nutrition Information

Calories: 451 kcal
Protein: 15 g
Fat: 30 g
Carbs: 25 g

Nutrient	Per serving
Calories	451 kcal
Protein	15 g
Fat	30 g
Carbs	25 g

Tips

Allow enough time for onions to caramelize slowly; this develops their sweetness and deep flavor, crucial for the tart's balance.
For extra crispiness, you can blind bake the puff pastry with pie weights or dried beans for the first 10 minutes.
Serve this tart warm or at room temperature. It pairs wonderfully with a simple green salad dressed with vinaigrette.