Buckwheat Harvest Tart

Buckwheat Harvest Tart

How many cook books do you have? I probably have at least 30 and am always tempted to add to my library. And it feels like this year’s batch of cook books is particularly alluring. I can’t help being biased and feel a particular draw to books created by food bloggers. I frequently cook from Jenny Rosentrach’s Dinner, A Love Story, am really looking forward to dipping into The Smitten Kitchen by Deb Perelman, but the book that is basically living on my kitchen counter is The Sprouted Kitchen, A Tastier Take on Whole Foods by Sara Forte. Sara’s site, Sprouted Kitchen is actually a collaboration with her photographer husband, Hugh Forte. It’s a beautiful thing and I love their approach to making health food as delicious and enticing as any “cheat” foods could be. I posted on Monday about the super yum coconut loaf I baked on Sunday. I was hoping to make it last the week for afternoon snacks and such but… yeah, it’s gone. This weekend I’m going to try this lovely thing, a hearty, vegetarian tart. Be sure to stop by tomorrow when we’re going to give away this lovely book to one lucky reader! – C.M.

Photo credit: Hugh Forte © 2012 

Buckwheat Harvest Tart


  • Serves 6
  • For the Crust
  • 1 cup buckwheat flour
  • 3/4 cup unbleached all-purpose flour
  • 1/2 teaspoon sea salt
  • 1/2 cup cold unsalted butter, cut into cubes
  • 2 teaspoons fresh thyme leaves
  • 1 tablespoon apple cider vinegar
  • 2 to 3 tablespoons cold water
  • for the Filling
  • 3 cups cubed butternut squash ?(1/4-inch cubes)
  • 2 tablespoons extra-virgin olive oil
  • Sea salt and freshly ground black pepper
  • 1/2 teaspoon freshly grated nutmeg
  • 2 cloves garlic, minced
  • 1 bunch Swiss chard, stems removed, coarsely chopped (about 6 cups chopped)
  • 1/2 teaspoon red pepper flakes
  • 1 small yellow onion
  • 2 tablespoons balsamic vinegar
  • 3 eggs
  • 1 cup grated Gruyère


To make the crust, in a food processor, add both flours and the salt and pulse to combine.

Add the butter and thyme and pulse until pea-size chunks form.

Keep pulsing while adding the vinegar and then the cold water, 1 tablespoon at a time, stopping when the dough just barely holds together.

Form the dough into a disk, wrap it in plastic wrap, and chill in the fridge for at least 30 minutes or up to overnight.

Preheat the oven to 400°F.

On a lightly floured surface, roll out the dough into a 13-inch circle.

It should be about 1/4 inch thick.

Roll the dough around the rolling pin and lift it into an 11-inch fluted tart pan with a removable bottom. Press the dough into the edges and up the sides, making sure to patch up any holes.

Gently roll your rolling pin across the top of the tart pan to remove the extra dough and create a clean edge.

Prick the bottom of the dough with a fork, lay a piece of parchment paper on top, and fill the tart shell with pie weights

Bake for 15 minutes.

Remove the parchment and weights and bake until the top looks almost dry, another 10 to 12 minutes.

Remove from the oven and let cool.

While the crust is cooling, prepare the filling.

On a rimmed baking sheet, toss the squash with 1/2 tablespoon of the olive oil, 1/2 teaspoon salt, and the nutmeg.

Spread in an even layer and bake until the squash begins to brown around the edges, 20 to 25 minutes.

Remove from the oven and let cool.

In a large sauté pan over medium heat, warm 1 tablespoon of the olive oil and the garlic.

When the garlic starts to sizzle a bit and becomes fragrant, add the Swiss chard, red pepper flakes, and a pinch of salt.

Sauté until the chard is wilted, about 5 minutes.

Transfer to a large mixing bowl and set aside.

Peel and halve the onion and thinly slice.

In the same pan you used for the chard, heat the remaining 1/2 tablespoon olive oil over medium heat.

Add the onion and a pinch of salt and stir every so often until caramelized, about 20 minutes.

When the onions are a nice light brown color, add the balsamic vinegar, stir, and turn off the heat.

The onions will absorb the vinegar as they cool a bit.

Squeeze out any excess water from the Swiss chard and return to the bowl.

In a separate bowl, whisk the eggs until blended well, then add to the chard.

To the bowl with the chard, add three-fourths of the squash, half of the cheese, the onion, and a few grinds of black pepper.

Gently mix everything together and pour into the tart pan.

Spread into an even layer. Scatter the remaining squash and cheese across the top.

Bake in the oven until the egg is just set and the top is browned, 24 to 28 minutes.

Remove the tart from the oven and allow it to cool for 5 to 10 minutes before cutting into slices and serving.


This can also be made in a springform pan if you don’t have a fluted tart pan. Because many springform pans are about 9 inches around, the crust will be a bit thicker, so be sure to press the dough gently up the sides of the pan in an even layer, just as you would the tart pan. The filling will be a tad deeper too, so add a few minutes to the final baking time.

Reprinted with permission from The Sprouted Kitchen by Sara Forte, copyright © 2012. Published by Ten Speed Press, a division of Random House, Inc.

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