Potato, Roasted Garlic, and Rosemary Focaccia

Are you as obsessed as I am with the Great British Baking Show / Great British Bake-Off? Originally aired on BBC, a few precious seasons have traveled across the pond courtesy of PBS (seriously, how great is PBS? Let’s keep it, even if that means making a few phone calls). I devoured the first season that became available in the U.S., then was forced with the second (which PBS called season 3) into consuming only in bite-size chunks, since I watched as it aired week by week. It was excruciating – all I really wanted was to binge. So when our friend D. told me she had bought season 2 (in Britain, season 4 [yeah, we’ve made the numbering all kinds of weird]), I couldn’t resist but do the same (and then, of course, it became available on Netflix a week or two later. Typical).

I won’t tell you who wins, in case you haven’t watched it, but I quickly developed some favorites, and one was Beca, the Welsh army wife who spun beautiful homey recipes into her bakes. One week, the bakers were asked to create breads with unconventional flours, to test their skills when gluten development was off the table. Beca made a focaccia using spelt flour and mashed potatoes, topped with rosemary sprigs and more potatoes, and I couldn’t hold myself back from the kitchen.

My version goes back to standard old bread flour, since when I wanted the bread I wanted it nowthankyouverymuch, and wasn’t willing to wander the grocery aisles looking for spelt. I’ve simplified just a touch, using the same kind of potatoes for both the dough and the topping, and I’ve replaced her suggestion of gorgonzola with whole cloves of roasted garlic. Upon consultation with another recipe or two, I bumped up the quantity of olive oil for a lovely oily crustiness that is a good reminder that focaccia really is just an extremely thick-crust pizza.

Including cooked and mashed potatoes in focaccia is not unusual, resulting in a dough with some heft and stickiness, but it bakes into such a satisfying, warm, golden rectangle that the clingy dough is ultimately worth dealing with, especially if you use a stand mixer to knead it. Unlike a regular loaf, this focaccia gets spread onto a well oiled baking sheet after its first rise, and prodded and stretched over the course of half an hour or so as it settles across the tray. As you persuade it to spread, you also aggressively stab at it with your fingertips to give it that classic dimpled look, which is somewhat satisfying if you’re, I don’t know, going through withdrawal because you don’t have any more episodes of a certain show to watch…

Since I ended up irregularly shingling the top of this bread with potato slices, I was a little bit concerned that it wouldn’t rise well in the oven, and that the moisture of the potatoes would make the spots underneath them seem a bit doughy and under baked (Paul Hollywood would not be pleased). Delightfully, the whole thing rose nicely, and yes, the surface underneath the potatoes did look a little anemic compared to the well browned exposed parts in between, but it was cooked through and made for a pleasant textural contrast with the crunch of the bread and the crispness of the baked rosemary sprigs.

Since it is – perhaps with the addition of some cheese – a near equivalent of a pizza, focaccia is practically a meal in itself. But it also pairs well with roasted chicken, or a bowl of soup, or a crisp salad. We even sliced the last few pieces horizontally, toasted them for a few minutes, and used them as the base for sandwiches. Much of the stress of shaping, scoring, and steaming associated with a boule or baguette is eliminated, making this a perfect project for a slow, easy day, and perhaps a glass of sparkling wine or an amber ale as an accompaniment for the warm, well-oiled square you can hardly wait to cut for yourself.

Potato, Roasted Garlic, and Rosemary Focaccia
Makes one 9x13x3 inch loaf, depending on how much yours rises
4 medium Yukon gold potatoes, sliced thinly (about ¼ inch)
2 teaspoons active dry yeast
1 teaspoon sugar
1 tablespoon salt
3-4 cups bread flour
2 tablespoons fresh rosemary sprigs, divided
1 bulb garlic, bashed into separate cloves
1 cup warm water reserved from cooking the potatoes
¾ cup olive oil + 2 teaspoons, divided

 

  • Cook the sliced potatoes in plenty of boiling water until they are tender but not falling apart, 10-15 minutes. Drain, reserving 1 cup of the cooking water, and set aside half of the potato slices to cool. Mash the other half as smoothly as possible (I leave the skins on, so there will always be some shredded potato skin in there; that’s okay).
  • Once the potato water has cooled to just warm or room temperature (110F at the hottest), stir in the yeast and the sugar and let it sit about 10 minutes to dissolve and bubble.
  • Meanwhile, combine 3 cups of the bread flour, the tablespoon of salt, and 1 tablespoon of the rosemary leaves, finely chopped, in the bowl of a stand mixer. With the mixer running at low speed and the paddle attachment affixed, drizzle in ½ cup of the olive oil. Add the bubbling yeast mixture and 1 cup of the cooled mashed potatoes and mix with the paddle attachment to bring together.
  • Switch to the dough hook and knead until smooth but still slightly sticky, around 5-8 minutes. If the mixture is not smoothing out or coming together, or it looks impossibly wet, add more flour ¼ cup at a time, mixing well in between additions.
  • Once the dough has come together into a smooth, slightly sticky ball, cover the bowl with plastic wrap and let the dough rise at warm room temperature for about 1 hour, until it has doubled in size.
  • While the dough rises, heat the oven to 300F, put the garlic cloves in a small, oven-safe dish and drizzle them with salt, pepper, and 2 teaspoons of the olive oil, then cover the dish with aluminum foil and bake until the garlic cloves are soft and aromatic, around 20 minutes. Set them aside until they are cool enough to handle, and raise the oven temperature to 425F.
  • When the dough has risen, oil a 9×13 inch baking tray with the remaining ¼ cup of olive oil (I know, it sounds like a lot of oil, but this is that sort of bread. Trust me). Spread it out with your fingertips to evenly coat the tray, then tip in the risen dough. Stretch and push it out over the width and length of the tray, dimpling it with your fingers as you do so. It will be reluctant.
  • Let the dough rise on the tray for 30-45 minutes, stretching it and prodding it and dimpling it as it rises. Though it will spring back at first, after the first 15 minutes or so it will relax and stretch more willingly as it puffs. You want to encourage it all the way into the corners, and be aggressive with your dimpling, stabbing right through the dough with your fingertips, otherwise the impressions will bake right out and you will end up with a smooth loaf, not focaccia’s characteristic cragginess.
  • After 30-45 minutes when the dough has puffed and stretched to fill the baking tray entirely, peel the roasted, cooled garlic cloves and press the whole cloves into the bread at random intervals. Add the reserved potato slices, leaving some space in between them, then add the remaining 1tablespoon of rosemary in small sprigs or individual leaves. If you wish, a final drizzle of olive oil over the top and a sprinkle of coarse salt is a nice final touch.
  • Bake in the preheated 425F oven for 20-30 minutes, or until the focaccia is nicely puffed and a tawny golden-brown color in the spots between the potatoes.
  • Let it cool on a wire rack for at least ten minutes before slicing in.

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