Butternut Squash and Parmesan Tart

A slice of butternut squash and Parmesan tart on a white plate with a fork and knife, garnished with microgreens.

This tart has long been an essential—and award-winning—item on the menu at Popina Bakery in London’s Notting Hill. Named for the Latin word for “eatery,” the bakery takes a rather imaginative approach to simple, seasonal fare, as evidenced by this melding of ingredients. Trust us, it makes an accolade-inducing appetizer or late-morning entrée.–Isidora Popovic

LC As We Like It Note

Rather than leave the squash and onion raw before incorporating them into the tart, we prefer to sauté or roast them until sweet and softened. But that’s just us. If you don’t have a fluted tart pan with a removable bottom, simply make the recipe in a 9-inch pie tin—just remove the slices with extra care when serving. And although you can substitute whichever tart crust you’ve committed to memory, we really actually prefer the slightly nutty flavor imparted by the spelt in this recipe.

Butternut Squash and Parmesan Tart

  • Quick Glance
  • (2)
  • 30 M
  • 1 H
  • Serves 8
5/5 - 2 reviews
Print RecipeBuy the Popina Book of Baking cookbook

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Special Equipment: 9-inch fluted tart pan with a removable bottom


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  • For the spelt dough
  • For the tart


Make the spelt dough
Preheat the oven to 325°F (160°C).
Mix the flour, yeast, and salt in a large bowl. Make a well in the center and pour in the oil, egg, and water. Draw everything together with your hands until a soft dough forms.
Transfer the dough to a lightly floured surface and knead for a couple of minutes. The dough should be soft but not sticky. If it’s sticky, add a little flour and knead again.
Make the tart
Butter a 9-inch fluted tart pan with a removable bottom.
Roll out the dough with a rolling pin until 1/8 inch thick. Line the tart pan, tucking the dough into the edge of the pan. Don’t trim the edges just yet.
Place the onion and butternut squash in a mixing bowl and toss gently.
In a separate bowl, combine the cream, egg, Parmesan, salt, and pepper and whisk well.
Pour half the cream mixture into the tart crust. Scatter the onion and butternut squash over the cream mixture. Pour the remaining cream mixture over the top. Trim the excess pizza dough neatly around the edges.
Bake the tart 30 to 35 minutes, until golden. Remove from the oven and let cool for a few minutes before slicing. Serve warm or cold.
Print RecipeBuy the Popina Book of Baking cookbook

Want it? Click it.

Recipe Testers Reviews

This soft and chewy crust inspires me to use spelt more often. For added flavour, I roasted the butternut squash and onion before adding them to the filling. The filling had a firm yet creamy texture, and the red onion added a hint of sweetness. As a cheese lover, however, I felt that the 3 tablespoons of Parmesan weren’t enough, so next time, I’ll add some to the crust as well. Overall, we enjoyed this refreshingly different recipe that utilizes butternut squash in a unique way.

This is a wonderful recipe. Because I was unable to find spelt flour in my area, I made a basic pastry crust instead, which resulted in a tart with a nice balance of sweet and savory. My only tip is to allow enough time to prep the squash—producing uniform matchsticks took me awhile because the squash is rather hard to cut. The flavors of the squash, red onion, and Parmesan cheese melded together nicely. After having one slice, I had to go back for another.

I really liked the flavor combination of this tart. I chose to roast the onion and squash prior to filling the tart, which really enhanced the flavors of the vegetables. I was concerned that the spelt flour would overpower the squash and onion, but it didn’t at all. In fact, I really enjoyed the flavor and texture of the crust. The filling could have used more egg or heavy cream, however. There were plenty of squash and onions, but the egg mixture was thin, so the next time I make this I’ll increase the egg and heavy cream mixture.

This was crazy good. I softened the squash and onions (in a little bit of butter) before adding them to the egg and cream mixture, and that extra step contributed quite a bit to the flavor. I used the measurements exactly as directed, and the filling was just the right amount to fill the tart shell. Baking time and temperature were accurate (depending upon the crust recipe you use, you may need to bake the crust blind before filling and baking the tart). The final product had this rich, creamy sweetness, with a savory element provided by the cheese and onion. We couldn’t get enough of this, and I plan to make it again.

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