Cheesy Asparagus Potato Tart #FoodieExtravaganza

This cheesy asparagus potato tart takes three of my favorite things – crisp puff pastry, cheesy mashed potatoes made with creamy yogurt, and fresh asparagus – and turns them into so much more than the sum of three parts.

I’ve been making variations on this recipe since Jamie Oliver’s Jamie at Home* was first published in the UK, circa 2008. If I remember correctly, his tart calls for cream and is baked up in a shortcrust. Or  maybe phyllo pastry. Possibly it had different cheeses. It’s been a long time!

But like any good quiche recipe, this cheesy asparagus potato tart can also be adapted to use what you have on hand. As long as there are potatoes and cheese, it’s all good. And I prefer yogurt or sour cream in place of the rich cream anyway. Those add a little welcome tang.

Cheesy Asparagus Potato Tart

Adapted from Jamie at Home* this cheesy asparagus potato tart has been a family favorite for years with its puff pastry crust, savory potato filling and fresh asparagus topping.

If you can’t find nice asparagus in your local market, substitute green beans, preferable those fine green beans they call haricots verts très fine in France. I’ve used them instead of asparagus a couple of times and the tart is just as pretty and still fabulously tasty. Failing that, use normal green beans and cut them on an angle before blanching.

Ingredients
1 1/2 lbs or 675g potatoes
Sea salt 1/2 lb or 225g asparagus spears
1 round pre-rolled puff pastry sheet (about 11 1⁄4 oz or 320g)
5 1/2 oz or 155g freshly grated extra sharp cheddar
3 large eggs
1 cup or 240g whole fat plain yogurt, cold
Freshly ground black pepper

Method
Bring a pot of water to the boil and add a teaspoon of fine sea salt. Fill a bowl with cold water and some ice and set aside. Cut the woody ends off of the asparagus with a sharp knife and pop them into the boiling water and set a timer for 3 or 4 minutes. Three if the asparagus are thin ones, four if they are thicker.

Peel your potatoes and cut them into chunks.

When the time goes off, remove the asparagus from the pot with a slotted spoon and put them in a colander. Rinse them with cool tap water then tip them into the ice water bowl. Once they are well chilled, drain and dry the asparagus on a clean towel or paper towels.

Gently lower your potatoes into the pot of salted water and bring it back to a low boil. Cook the potatoes for about 15 minutes or until tender.

Preheat your oven to 400°F or 200°C and line the bottom of your 9 in or 23cm tart pan with a circle of baking parchment. Unroll your puff pastry and line the tart pan with it. Put the tart pan in the refrigerator to chill until you are ready to fill it.

When the potatoes are done, mash them until they are relatively lump-free. Fold in the cold yogurt and stir till combined.

Now add in the cheese and stir well again. Taste the potatoes and sprinkle on a little more salt if needed, along with a few generous grinds of fresh black pepper. I usually add about a 1/2 teaspoon fine sea salt but if your cheese is pretty salty, that might not be necessary.

By this time your potatoes should have cooled off considerably from all the additions and the stirring. We don’t want them to be so hot because then they would cook the eggs on contact. If they are just warm, proceed. Otherwise stir a few more times to help them cool.

Add the eggs one at time, stirring till well combined with each addition.

Spoon the filling into the chilled puff pastry crust and smooth out the top.

Cover the top of the cheesy potato filling with the blanched asparagus. Fold the edge of the crust under itself, if there is any hanging out.

If your tart pan has a removable bottom, put the tart pan on larger pan and put them both into the oven. If not, put the tart pan straight into the preheated oven. I like to use one with a removable bottom because it's prettier on the serving platter without the pan.

Turn the oven down to 375°F or 190°C. Bake the tart for about 30-35 minutes or until the crust is puffy and golden and the center is just set. A tiny wiggle is okay as that will set when it cools.

Leave to rest on a wire rack for about 10-15 minutes before cutting and serving. Use a serrated knife or even some kitchen scissors to cut through the asparagus on top before cutting down through the tart below. A dull knife will just push the asparagus into the cheesy potato filling.

This cheesy asparagus potato tart can also be served at room temperature.

Enjoy!

This month my Foodie Extravaganza group is sharing recipes with pastry. Many thanks to our host, Caroline from Caroline's Cooking for the theme and her behind the scenes work. Check out all the great recipes below:

• Cheesy Asparagus Potato Tart by Food Lust People Love
• Cornish-Style Steak Pasties by Karen's Kitchen Stories
• Garlic Herb Chicken in Puff Pastry by A Day in the Life on the Farm. 
• Kolache Cookies by Caroline's Cooking
• Puff Pastry Apple Cranberry Strudel by Veggie Fun Kitchen
• Raspberry Pistachio Palmiers by Palatable Pastime

Foodie Extravaganza celebrates obscure food holidays by posting delicious recipes your family will love. Posting day is always the first Wednesday of each month. If you are a blogger and would like to join our group and blog along with us, come join our Facebook page Foodie Extravaganza. We would love to have you! If you're a home cook looking for tasty recipes, check out our Foodie Extravaganza Pinterest Board!

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