Caramelized Onion & Mushroom Tart with Chimichurri

Buttery puff pastry meets earthy mushrooms and bright Chimichurri in this flaky, flavor-packed tart.
Caramelized Onion & Mushroom Tart with Chimichurri
This one looks fancy but requires minimal effort. It starts with a store-bought puff pastry and ends with a flaky, golden tart layered with caramelized onions, buttery mushrooms, melty Gruyère, and a bold drizzle of Chimichurri to tie it all together. Serve it sliced for brunch, dinner, or anything in between.
Ingredients:
- 1 sheet puff pastry, thawed
- 2 medium onions, thinly sliced
- 1 cup mushrooms, sliced
- 2 tbsp butter
- 1 pack Howl at the Spoon Chimichurri Sauce
- 1/2 cup shredded Gruyère cheese
- Salt and pepper to taste
Instructions:
- Preheat oven to 400°F (200°C).
- In a skillet, melt butter over medium heat. Add onions and cook, stirring occasionally, until caramelized (15–20 minutes).
- Add mushrooms and sauté another 5–7 minutes until browned. Season with salt and pepper.
- Roll out puff pastry on a baking sheet and score a 1-inch border around the edges with a knife (don’t cut all the way through).
- Spread the caramelized onion and mushroom mixture inside the border. Top with shredded Gruyère.
- Bake for 15–20 minutes until golden and puffed. Drizzle with Chimichurri before serving.
Flavor tip: Serve this warm or at room temp with a simple arugula salad. Fancy vibes. Minimal effort.
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