This incredibly thick, baked sourdough discard focaccia is the ultimate way to use up your leftover sourdough starter. There is nothing quite like the satisfaction of pulling a heavy, dark metal pan from the oven, listening to the olive oil sizzle around the golden-brown edges. The surface is a canvas of savory perfection.
Every bite delivers a contrasting crunch from the heavily blistered crust and an ultra-soft, airy interior crumb. The deep, olive oil-filled dimples hold incredible pockets of flavor, perfectly capturing the essence of an authentic Italian bakery in your own kitchen.
You will experience bursts of sweetness from caramelized roasted garlic cloves and a beautiful, rustic chew from slightly charred red sun-dried tomatoes. Melted artisan cheese pockets bubble up to the surface, complementing the generous sprinkle of coarse white sea salt flakes, earthy fresh green rosemary sprigs, and fragrant dried herb flakes.
Why You’ll Love This Recipe
- Unbelievable Texture: Baking this high-hydration dough in a rectangular dark metal baking pan guarantees a thick base with a shatteringly crisp, golden-brown blistered crust.
- Sensory Masterpiece: The aroma of fresh green rosemary sprigs and roasting garlic will make your kitchen smell irresistible.
- Zero Waste: It transforms unfed sourdough discard into a premium, bakery-level loaf without the intense multi-day wait of traditional sourdough.
- Gourmet Add-Ins: Melted artisan cheese pockets and charred red sun-dried tomatoes elevate this from a simple side dish to a standalone culinary event.
Ingredients & Substitutions
Sourdough Discard: You need 1 cup (240g) of unfed sourdough discard. This provides the complex, tangy background flavor and tenderizes the bread crumb.
Bread Flour: Use 4 cups (480g) of high-protein bread flour. The extra gluten is critical for creating a thick baked sourdough focaccia bread base that can support heavy toppings.
Warm Water: You will need 1 ¾ cups (420ml) of warm water (around 95°F or 35°C). High hydration is the scientific secret behind a light, airy crumb and a deeply blistered crust.
Instant Yeast: Add 2 tsp (7g) of instant yeast. Because discard lacks the lifting power of an active starter, this foundational ingredient ensures a rapid, reliable rise.
Extra Virgin Olive Oil: Measure out ½ cup (120ml) of high-quality extra virgin olive oil, divided. You need this to enrich the dough, grease the dark metal pan, and fill the deep dimples.
Whole Garlic Cloves: Use 1 whole head of garlic (about 12 cloves), peeled. You will roast these until deeply caramelized to press into the dough.
Sun-Dried Tomatoes: Roughly chop ½ cup (75g) of red sun-dried tomatoes packed in oil. Leaving them slightly exposed on top ensures they become beautifully charred in the oven.
Artisan Cheese: Cube 4 oz (115g) of your favorite artisan cheese, like Fontina or low-moisture Mozzarella. Pressing these cubes into the dough creates melted artisan cheese pockets.
Fresh & Dried Herbs: Gather 3-4 fresh green rosemary sprigs and 1 tsp (2g) of dried herb flakes (like oregano or Italian seasoning). These add a piney, earthy aromatic layer to the golden crust.
Sea Salt: You need 2 tsp (12g) of fine sea salt for the dough and 1 tbsp (15g) of coarse white sea salt flakes for the finishing touch.
Equipment Needed
- Rectangular Dark Metal Baking Pan: A 9×13-inch (23x33cm) dark metal pan is essential. Dark metal conducts heat aggressively, ensuring the bottom of the focaccia fries in the olive oil for a crispy crust.
- Large Mixing Bowl: For mixing and proofing the highly hydrated dough.
- Foil: For wrapping the garlic during the roasting process.
Step-by-Step Instructions
1. Roast the Garlic
Preheat your oven to 400°F (200°C). Place the peeled garlic cloves on a sheet of aluminum foil, drizzle with 1 tbsp (15ml) of olive oil, and wrap tightly into a pouch.
Roast for 30-35 minutes until the cloves are soft, deeply golden, and fragrant. Set them aside to cool; these caramelized roasted garlic cloves will be pushed into the dough later.
2. Mix the Dough
In a large mixing bowl, combine the warm water, instant yeast, and sourdough discard. Whisk until the discard breaks down into a milky liquid.
Add the bread flour and fine sea salt. Mix with your hands or a wooden spoon until a shaggy, sticky dough forms, ensuring no dry flour spots remain.
3. Stretch and Fold
Cover the bowl with a damp towel and let it rest for 30 minutes. After resting, wet your hands slightly and grab one side of the dough, pulling it up and stretching it over itself.
Repeat this stretching and folding motion on all four sides of the dough. This foundational technique builds the gluten network necessary for a thick, chewy base.
4. The First Rise
Cover the bowl again and let the dough rise at room temperature for 1.5 to 2 hours. You are looking for the dough to double in size and become very bubbly and jiggly.
5. Pan and Second Rise
Pour 3 tbsp (45ml) of extra virgin olive oil into your rectangular dark metal baking pan, coating the bottom and sides thoroughly. Gently transfer the dough into the pan, turning it once to coat it in the oil.
Using your fingers, gently stretch the dough toward the edges. If it resists, let it rest for 15 minutes and try again. Cover and let it rise in the pan for 1 hour until it is puffy and fills the pan.
6. Dimple and Top the Focaccia
Preheat your oven to 425°F (220°C). Drizzle the remaining olive oil over the top of the puffed dough. Rub a little oil on your fingers to prevent sticking.
Press your fingers straight down into the dough, pushing all the way to the bottom of the pan to create deep olive oil-filled dimples. You will hear satisfying popping sounds as gas bubbles redistribute.
7. Embed the Toppings
Take your caramelized roasted garlic cloves, sun-dried tomatoes, and cubed artisan cheese. Firmly press them deep into the dimples of the dough.
Leaving the edges of the sun-dried tomatoes slightly exposed will allow them to become deliciously charred. Sprinkle the surface generously with coarse white sea salt flakes, torn fresh green rosemary sprigs, and dried herb flakes.
8. Bake to Perfection
Bake on the middle rack for 25-30 minutes. Watch closely as the artisan cheese melts into gooey pockets and the focaccia base develops a golden-brown blistered crust.
Remove from the oven and listen for the residual sizzle of the oil against the dark metal. Let it cool in the pan for 10 minutes before transferring to a wire rack to prevent a soggy bottom.
Expert Tips for Success
- Embrace the Dark Pan: Using a dark metal pan absorbs and radiates heat faster than glass or ceramic. This is the absolute best way to guarantee a fried, deeply golden bottom crust.
- Don’t Skimp on Oil: Focaccia is essentially a fried bread. If the pan looks like it has too much oil, it is probably exactly the right amount.
- Aggressive Dimpling: Do not be shy when dimpling the dough. Push your fingers all the way down until you feel the cold, hard bottom of the dark metal baking pan.
- Char Control: If your fresh rosemary sprigs or sun-dried tomatoes start to burn before the bread is done, loosely tent the pan with foil for the last 5 minutes of baking.
Storage & Reheating/Freezing
Store leftover focaccia in an airtight container at room temperature for up to 2 days. Because of the melted cheese and roasted garlic, it is best moved to the refrigerator if keeping for up to 4 days.
To reheat, place slices directly on a wire rack in a 350°F (175°C) oven for 5-8 minutes. This restores the golden-brown blistered crust and re-melts the artisan cheese pockets perfectly. You can also freeze tightly wrapped individual slices for up to 2 months.
What to Serve With This
This incredibly robust, flavor-packed sourdough discard focaccia is a meal in itself, but it truly shines when paired with the right dishes. For a cozy, rustic dinner, serve large squares alongside our rich Tuscan Sausage and Potato Soup or a velvety, elegant Shrimp Bisque to soak up every last drop of broth.
If you are hosting a hearty family dinner, this bread is the perfect sidekick to our Veggie White Lasagna, a comforting Creamy Baked Chicken and Asparagus, or a heavily seasoned Cajun Steak Pasta. The blistered crust stands up beautifully to heavy, creamy sauces.
For a lighter lunch, slice the focaccia horizontally to make incredibly elevated sandwiches, or serve it on the side of a crisp Asian Cabbage Salad or a fresh Cucumber Mozzarella Salad. It also makes an exceptional pairing for meal-prep favorites like our Mediterranean Steak Bowls and our cheesy Homemade Scalloped Potatoes.
Frequently Asked Questions
Yes! For even deeper flavor, after you place the dough in the dark metal baking pan and stretch it out, cover it tightly and place it in the refrigerator for 12-24 hours. Let it sit at room temperature for 2 hours to puff up before dimpling and baking.
Yes, you can absolutely use an active, bubbly sourdough starter. If you do, you can omit the instant yeast entirely, but you will need to extend your rise times significantly (usually 4-6 hours for the bulk ferment and an overnight proof in the fridge) to get the proper lift.
Press the toppings deeply into the olive oil-filled dimples so the dough protects them slightly. If you notice the herbs or tomatoes charring too quickly during the last 5-10 minutes of baking, loosely place a piece of aluminum foil over the top of the pan.
A crispy, blistered crust requires three things: high hydration (enough water in the dough), plenty of olive oil in the pan, and baking in a dark metal pan. Glass or light ceramic pans do not conduct heat aggressively enough to fry the bottom of the dough.
Recipe Card
Sourdough Discard Focaccia with Roasted Garlic and Artisan Cheese
Ingredients
Equipment
Method
- Preheat oven to 400°F (200°C). Place the peeled garlic cloves on a sheet of foil, drizzle with 1 tbsp of olive oil, and wrap tightly. Roast for 30-35 minutes until soft and deeply caramelized. Set aside to cool.
- In a large bowl, whisk the warm water, instant yeast, and sourdough discard together. Add the bread flour and fine sea salt, mixing until a shaggy, sticky dough forms with no dry spots.
- Cover the bowl with a damp towel and rest for 30 minutes. Wet your hands, grab one side of the dough, pull it up, and fold it over itself. Repeat on all four sides to build gluten structure.
- Cover the bowl and let the dough rise at room temperature for 1.5 to 2 hours, until doubled in size and bubbly.
- Pour 3 tbsp of olive oil into a 9x13-inch dark metal baking pan. Transfer the dough to the pan, turning to coat in oil. Stretch it gently toward the edges. Cover and let rise for 1 hour until puffy.
- Preheat oven to 425°F (220°C). Drizzle the remaining olive oil over the dough. With oiled fingers, press straight down to the bottom of the pan to create deep dimples. Press the roasted garlic, sun-dried tomatoes, and cheese cubes deep into the dimples. Sprinkle with sea salt flakes, fresh rosemary, and dried herb flakes.
- Bake for 25-30 minutes until the cheese is melted and the focaccia has a golden-brown blistered crust. Cool in the pan for 10 minutes, then transfer to a wire rack.
Notes
If toppings begin to burn, tent loosely with aluminum foil during the last 5 minutes of baking.
Final Thoughts
Once you pull this stunning, thick-baked sourdough focaccia out of the oven, it will become a permanent staple in your discard-baking routine. The combination of caramelized roasted garlic, charred tomatoes, and pockets of melted artisan cheese is simply unbeatable.
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