Name: Rustic Garlic Rosemary Potato Focaccia Bread
Prep time: 30 min
Cook time: 25 min
Total time: 15 h
Yield: 12 squares servings
Cuisine: Italian (Ligurian)
Ingredients: 4 cups (500g) unbleached bread flour; 2 teaspoons instant yeast; 2 teaspoons fine sea salt; 1 3/4 cups (420ml) lukewarm water; 1/2 cup extra virgin olive oil, divided; 2 medium Yukon Gold potatoes, scrubbed and sliced paper-thin; 3 cloves garlic, thinly sliced; 2 tablespoons fresh rosemary leaves; 1 tablespoon flaky sea salt (such as Maldon); Freshly cracked black pepper to taste

If you have ever traveled through the sun-bleached coastal towns of Liguria or Puglia in Italy, one of your most vivid sensory memories is undoubtedly the morning aroma drifting from neighborhood panifici. Sheets of golden, olive oil-soaked focaccia cooling on wooden counters, their surfaces dimpled with sea salt, aromatic rosemary, and paper-thin rounds of tender roasted potato. Known in Italy as Focaccia con Patate, this rustic flatbread is a revelation: pillowy and cloud-like inside, shatteringly crisp on the bottom, and topped with golden, creamy potato edges that melt on the tongue.

Making artisan potato focaccia at home is surprisingly simple and requires no specialized dough kneaders or intimidating bread-baking techniques. Using a high-hydration no-knead dough fermented slowly in the refrigerator, the gluten develops effortlessly overnight. Baked in a generous pool of fruity extra virgin olive oil, it becomes an unforgettable centerpiece for dinner parties, weekend charcuterie boards, or an indulgent afternoon snack.

Why Potatoes on Focaccia Are a Masterstroke

Starch on starch might seem unusual to those unfamiliar with Italian baking, but the synergy between focaccia dough and sliced potatoes is pure culinary genius:

Meltingly Creamy Texture: Paper-thin potato slices bake directly into the top of the dough, absorbing olive oil and steam to become creamy and tender like potato gratin.
Crispy Frilled Edges: Where the potato edges curl upward, they crisp and brown into golden, savory potato chips seasoned with sea salt.
Keeps Bread Moist for Days: The moisture held within the potato slices keeps the top crust remarkably soft and supple long after baking.

The Mandoline Technique: Paper-Thin Potatoes

The single most important technical detail in this recipe is how you slice your potatoes. Slices must be paper-thin (about 1/16th of an inch). If sliced too thick, the potatoes will remain raw and crunchy while the bread burns. Using a kitchen mandoline ensures paper-thin, translucent rounds of Yukon Gold potatoes that cook through completely in the oven.

After slicing, soak the potato rounds in cold salted water for 15 minutes to wash away surface starch, then pat them completely dry between clean kitchen towels. Toss them in olive oil before shingling across the dough so every slice roasts to golden perfection.

Ingredients You’ll Need

Simple pantry staples produce artisan-bakery quality:

The Focaccia Dough

Bread Flour: Four cups (500g) of unbleached bread flour. Bread flour’s high protein content gives focaccia its signature chew and towering air pockets.
Instant Yeast: Two teaspoons (7g) of instant or active dry yeast.
Fine Sea Salt: Two teaspoons of fine sea salt dissolved into the water.
Lukewarm Water: One and three-quarter cups (420ml) of lukewarm water (about 80% hydration).
Extra Virgin Olive Oil: Half a cup total of robust, fruity extra virgin olive oil (divided between bowl, pan, and dimpling).

The Potato & Herb Topping

Yukon Gold Potatoes: Two medium Yukon Gold potatoes, washed and sliced paper-thin on a mandoline.
Fresh Rosemary: Two tablespoons of fresh rosemary leaves, roughly chopped.
Fresh Garlic: Three cloves of garlic, thinly sliced.
Flaky Sea Salt: One tablespoon of Maldon or fleur de sel flaky sea salt.
Freshly Cracked Black Pepper: Coarsely ground.

Step-by-Step Baking Instructions

Follow this foolproof no-knead sequence:

Step 1: Mix the High-Hydration Dough

In a large bowl, whisk bread flour and instant yeast. Dissolve salt into the warm water, then pour into the flour along with 2 tablespoons of olive oil. Stir with a wooden spoon or spatula until a shaggy, wet dough forms and no dry flour remains. Cover the bowl and let rest for 30 minutes at room temperature.

Step 2: Stretch and Folds (Build Structure)

With wet hands, reach under one side of the dough, pull it upward, and fold it over onto itself. Rotate the bowl 90 degrees and repeat three more times (completing four folds). Cover and rest for 30 minutes. Repeat this stretch-and-fold process two more times over the next hour. The dough will transform from lumpy into smooth and elastic.

Step 3: Slow Cold Fermentation (Flavor Development)

Cover the bowl tightly with plastic wrap and place in the refrigerator for at least 12 hours (and up to 48 hours). Cold fermentation allows enzymes to break starches into complex sugars, creating magnificent flavor and giant air bubbles.

Step 4: Pan Proofing

Pour 3 tablespoons of olive oil into a 9×13-inch metal baking pan, coating bottom and sides generously. Tip the cold dough into the pan. Gently turn the dough over once so both sides are coated in oil. Using your fingertips, gently nudge the dough toward the pan corners (do not force or tear it). Let proof at room temperature for 2 to 3 hours until doubled in size, puffy, and covered in jiggly air bubbles.

Step 5: Top, Dimple, and Bake

Preheat oven to 425°F (220°C). Toss dried potato slices with 1 tablespoon of olive oil. Shingle potato rounds evenly over the puffy dough. Scatter sliced garlic, fresh rosemary, and flaky sea salt on top. Drizzle with 2 more tablespoons of olive oil. Press your fingers straight down into the dough all the way to the bottom of the pan to create deep signature focaccia dimples. Bake for 25 to 30 minutes until the crust is deep golden-brown and potatoes are crisped at the edges. Cool on a wire rack for 15 minutes before slicing.

Rustic Garlic Rosemary Potato Focaccia Bread