Sourdough Focaccia (Same Day or Overnight)

Introduction: Why Sourdough Focaccia Is Worth Making

Sourdough focaccia is a versatile, rustic flatbread with a golden crust, pillowy interior, and a flavor profile that ranges from tangy to gently sweet depending on fermentation.
This recipe is written to work two ways: same day for bakers who want focaccia in hours, and overnight for those who prefer a slower, more developed flavor from a cool retard in the fridge.
Benefits of sourdough focaccia include a deeper flavor from natural fermentation, improved digestibility for some people, and a wonderfully open crumb when handled with high hydration. This article walks you through every step, from ingredient selection to baking and finishing, with troubleshooting tips so you can replicate great results consistently.
What to expect:

• A tender interior with large irregular holes when dough is handled gently
• A crisp bottom and edges from hot oven and well-oiled pan
• Surface dimples filled with olive oil that caramelize and carry toppings like rosemary and sea salt

By the end of this guide you'll be confident preparing either a quick same-day focaccia or an overnight version with more pronounced sourdough notes. Each approach has slight adjustments to hydration, fermentation time, and handling; these are covered in dedicated sections so you can tailor the bake to your schedule and taste.

Key Differences: Same Day vs Overnight Method

Choosing same day or overnight changes timing, flavor depth, and how active your starter needs to be.
Same day focaccia compresses the timeline by using a warmer environment and active starter to produce a good oven spring and light crumb within hours. Expect a milder tang and faster satisfaction. Overnight focaccia, by contrast, benefits from a cool proof in the fridge that slows yeast activity but increases enzymatic breakdown of starches and development of organic acids—this is where deeper sourdough character comes from.
Practical trade-offs:

• Flavor: Overnight yields more complexity; same day is fresher and slightly sweeter.
• Texture: Both can be open and airy; overnight fermentation often improves crumb structure when handled gently.
• Convenience: Same day suits spontaneous baking; overnight is schedule-friendly and often preferred for weekend plans.

Starter readiness matters: for same-day baking, use a lively, recently fed starter at peak; for overnight, a moderately active starter is fine because the cold retard controls fermentation speed. This section explains how to adjust hydration and proof times in later sections, and offers strategies to rescue dough that’s fermenting too rapidly or too slowly.

Gathering Ingredients (Same Day and Overnight Lists)

Ingredient quality is the foundation of great focaccia. Use a ripe sourdough starter, high-protein or all-purpose flour, good olive oil, and flaky sea salt for the best results. Below are two clear ingredient lists—one optimized for same day baking and one for overnight fermentation so you can choose based on schedule.
Same Day (yields one 9x13-inch pan):

• Flour: 375 g (about 3 cups) bread or all-purpose
• Water: 285 g (72% hydration), warm (75–85°F / 24–29°C)
• Sourdough starter: 90–120 g active (100% hydration)
• Salt: 9 g (1.5 tsp)
• Extra virgin olive oil: 45–60 g (3–4 tbsp) for dough and pan

Overnight (for more flavor, same yield):

• Flour: 375 g
• Water: 285 g (72%); use cooler water (60–70°F / 16–21°C) to slow activity
• Starter: 60–90 g active or modestly fed starter
• Salt: 9 g
• Olive oil: 45–60 g for dough and pan

Optional toppings and flavor add-ins:

• Fresh rosemary, thyme, or sage
• Cherry tomatoes or sliced onions
• Coarse sea salt or flaky salt for finishing

Small swaps: whole-wheat up to 20% of flour adds nuttiness; add up to 10–15 g honey or sugar for a touch of caramelization. The ingredient lists above are optimized for consistent hydration and handling whether you bake same day or overnight.

Equipment, Starter Prep, and Temperature Guidelines

Right tools make a difference but you don't need fancy equipment. A 9x13-inch rimmed baking pan or sheet pan, a bench scraper, a digital scale, and a reliable oven thermometer are the basics.
Starter prep varies by method:

• Same day: Feed your starter 4–8 hours before mixing so it's at peak activity; look for a domed, bubbly surface.
• Overnight: A slightly less vigorous feed is fine; you can feed 12–16 hours before mixing and refrigerate until needed if your schedule requires.

Temperature control influences rise speed:

• Ideal dough temperature (IDT): 75–79°F (24–26°C) for same day for brisk fermentation.
• Overnight retard: 38–45°F (3–7°C) to slow activity without stopping fermentation.

Practical tips:

• Use a proofing box or oven with light on for a slightly warmer environment for same-day rises.
• An oven thermometer helps verify your home oven’s accuracy; many ovens run hotter or cooler than the dial indicates.
• A scale is essential—measure grams for consistent hydration and repeatable results.

This section also covers common gear substitutions and how to maintain a robust starter with regular feeds so you can choose same day or overnight with confidence.

Mixing, Autolyse, and Hydration Tips for Open Crumb

Hydration and handling are the keys to an airy, open crumb. Focaccia typically runs at 70–80% hydration; this recipe uses 72% as a sweet spot for both manageability and open structure.
Start with an autolyse (flour + water) for 20–40 minutes to kickstart gluten formation without salt or starter inhibiting enzymes. This improves extensibility and reduces mixing time. After autolyse:

• Add starter: Mix the measured starter into the autolysed dough by folding and pinching until incorporated.
• Add salt and oil: Sprinkle salt across the surface and work it in with a few folds; olive oil added into the dough or reserved for the pan affects crumb and crust differently.

Mixing methods:

• Stretch and fold: Use a series of 3–4 stretch-and-fold sets spaced 20–30 minutes apart during bulk fermentation to build strength without overworking the dough.
• Slap-and-fold: For very wet dough, this method helps develop gluten quickly—but it’s not essential for focaccia if you prefer gentle handling.

Handling tips for open crumb: keep movements gentle, use a wet or oiled bench scraper, avoid degassing the dough fully, and trust time—fermentation develops structure more than aggressive kneading. These approaches help both same-day and overnight builds, with slight timing adjustments covered in later sections.

Bulk Fermentation, Stretch-and-Fold, and Shaping Basics

Bulk fermentation (the first rise) is where the dough gains flavor and structure. Timing depends on your method: same day bulk might be 3–4 hours at 75–78°F with 3–4 sets of stretch-and-folds, while overnight bulk can be 1–2 hours at room temperature before a cold retard in the fridge for 12–20 hours.
Stretch-and-fold technique:

• Wet your hands or oil them: Prevent sticking when lifting and folding.
• Lift one side and fold: Rotate the bowl and repeat 4 sides equals one set.
• Rest between sets: 20–30 minutes allows gluten to relax and strengthens the network.

Shaping for focaccia is very forgiving: gently transfer the dough to a well-oiled pan after bulk fermentation, taking care not to knock out all the gas.
How to spread without deflating:

• Coat your hands liberally with oil and use your fingertips to coax the dough outward to the corners.
• If the dough resists, let it rest 10–15 minutes to relax, then continue.

Proofing in-pan:

• Cover and proof until the dough visibly rises and slow springs back slightly when poked gently—this indicates readiness for dimpling and baking.

These methods support both timelines; the main variable is temperature and how long you retard in the fridge for flavor development.

Dimpling, Baking, and Finishing (Oven Tips and Visual Cues)

Dimpling is the signature step: use oiled fingertips to press indentations across the dough, leaving some pockets of gas for an airy interior. Don’t overwork the dough—leave many dimples shallow and varied for texture.
Preheat and baking:

• Preheat oven: 450°F (232°C) is ideal; place rack in lower third for a crisp bottom.
• Use a hot pan if possible: A preheated pizza steel or heavy sheet under the pan enhances bottom crust color.

Timing and indicators:

• Bake time: 18–25 minutes depending on oven and pan; rotate once for even color.
• Crust cues: Look for deep golden edges and slightly blistered top; the bottom should sound hollow when tapped.

Finishing touches: After removing from oven, immediately brush the surface with a little more olive oil and sprinkle flaky sea salt and fresh herbs. For a modern twist, drizzle aged balsamic or add roasted garlic and halved cherry tomatoes before baking for caramelized toppings.
Troubleshooting common issues:

• Dense crumb: Likely under-proofed—allow more time or warmer proofing.
• Flat focaccia: Could be over-proofed or too much oil in pan at first shaping; next time reduce bulk time slightly or shape sooner.

FAQs — Frequently Asked Questions About Sourdough Focaccia

Answers to common questions help troubleshoot and improve your bakes. Below are clear, practical answers for issues bakers ask about most often.
Q: Can I use whole wheat or other flours?
A: Yes. Substitute up to 20–30% whole wheat for a nuttier flavor and slightly denser crumb; add a touch more water if needed. Replace beyond 30% and expect reduced extensibility—use additional autolyse time and gentle handling.
Q: Why is my focaccia dense?
A: Common causes include under-proofing, insufficient strength from stretch-and-folds, or too low hydration. Ensure your starter is active, give adequate bulk fermentation, and avoid degassing the dough when transferring to the pan.
Q: How do I store leftovers?
A: Store at room temperature in an airtight container for up to 2 days or freeze sliced portions for longer storage. Reheat in a hot oven or toaster oven to refresh the crust.
Q: Can I make focaccia in a cast-iron skillet?
A: Absolutely. A well-oiled cast iron gives excellent bottom browning; reduce oven time slightly if the pan is very heavy and retains a lot of heat.
Q: How to adjust for high altitude?
A: Fermentation accelerates at altitude; shorten bulk and proof times, reduce starter slightly, and watch dough maturity rather than clock times.
Q: Best way to get a crisp bottom?
A: Use a hot oven, preheated baking surface, and enough oil in the pan to promote frying and caramelization of the bottom during the initial bake.
If you have a specific problem with your bake, describe the dough feel, timing, and environment and you’ll get targeted advice to refine technique and timing.