Caramelized Onions and Mushrooms Tart with Blue Cheese – simple tart made with puff pastry topped with caramelized onions, mushrooms and blue cheese.
I have a secret to share with you.
I love caramelized onions, as in caramelized onion flatbread, as in this tart here. But I also love mushrooms. And blue cheese. This tart here is a win win.
Are you guys scared of making tarts? They’re so easy because the easiest way to make them is using puff pastry, then you can top them with anything you want, fruits, custard tarts, and savory tarts like this one. You’ll find many such tarts here on Jo Cooks.
So this tart here. Yum! Caramelized onions and mushrooms in butter and olive oil, lightly seasoned with salt and pepper, you don’t need much salt because the blue cheese is fairly salted, puff pastry and one of my favorite cheeses, blue cheese. I know a lot of people are not fans of blue cheese but you have to give it a try, it’s delicious. When you marry all these great ingredients together you have a great marriage of amazing flavors resulting in one delicious tart.
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Caramelized Onions and Mushrooms Tart with Blue Cheese
Ingredients
- 1 tbsp olive oil
- 1 large onion sliced
- 1 tbsp butter
- 1 pound mushrooms cleaned and sliced
- salt and pepper to taste
- 1/4 cup white wine
- 1 sheet puff pastry thawed
- 1/2 cup blue cheese
Instructions
- Heat the oil and butter in a pan. Add the onion and cook until it starts to caramelize, about 20 minutes.
- Add the mushrooms and saute until they start to caramelize, about 20 minutes.
- Season with salt and pepper and add the wine, deglaze the pan and cook until it has evaporated.
- Roll the puff pastry out to a 12x12 inch rectangle.
- Preheat oven to 400 F degrees.
- Score a line around the puff pastry 1 inch from the edge.
- Spread the blue cheese over the middle of the puff pastry and then spread with the onion and mushroom mixture.
- Bake until the a the pastry is golden brown, about 15-25 minutes.
Yvonne says
I know this is fabulous, I’ve made it before but always just the day I serve it. This time I need to prepare for 30 guests. How far in advance may I cook the onion, cheese & mushroom mixture? I’d like to used this as a bruschetta topping.
Thank you,
Yvonne
Joanna Cismaru says
The onion cheese and mushroom mixture, could probably be made a couple days before, don’t think I’d do it earlier than that.
bristol plasterer says
This looks nice. Bet it tastes delicious to. Thanks for sharing.
Simon
Lori @ Foxes Love Lemons says
I love carmalized onions. I love mushrooms. I love blue cheese. And I LOVE LOVE LOVE savory tarts, especially for entertaining. Pinning this!
jo says
Thanks Lori!
Abbe @ Abbe's Cooking Antics says
Oh. Dear. GOD… I want this for my face! It hits all the right notes, Jo. I LOVE mushrooms, and would never have thought to include them on a tart with onions like this. It’s so easy to get stuck in your ways when cooking. This is a lovely idea and I’n going to copy it, and soon 😉
jo says
Go for it, hope you like it. 🙂
Mushrooms Canada says
Simple ingredients and packed with a flavour punch. This is certainly my kind of meal! Thanks for sharing…
-Shannon
jo says
Thanks Shannon!
Judy says
Did I tell you I baked a cake?
jo says
You did not! Good for you, did it turn out good?
Judy says
I did. I did and it turned out great. It was an orange chiffon so not hard but it was nice and light and springy and finished in five minutes. There. I’ve started. I need to change all my baking tins. They must be ancient. They’re still from England!!
jo says
That’s great Judy, I love those kind of cakes. 🙂
amallia says
wow, great recipe idea, thanks for sharing, I’ll try it. 🙂
jo says
Thanks Amalia 🙂