Sourdough Soft Italian Sandwich Bread

Ingredients

The Levain

Build this first from an active starter. It replaces the yeast entirely.

• 16g (1 tbsp) active sourdough starter
• 72g (½ cup + 1½ tbsp) bread flour
• 72g (¼ cup + 1 tbsp) water, room temperature

The Final Dough

Everything else goes in once the levain is ripe and floating.

• 320g (2⅔ cups) bread flour
• 120g (½ cup) whole milk, warm
• 60g (¼ cup) water, room temperature
• 20g (1½ tbsp) olive oil
• 12g (1¾ tsp) honey
• 8g (1¼ tsp) fine sea salt

Total flour: 400g

Hydration: 65%

Pro tip: Weigh everything, the levain included. The whole formula is built around a 20 percent levain, so an eyeballed scoop of starter throws the timing off. The scale keeps it honest.

Equipment

Method

Build the Levain (Wake up the starter and let it ripen)

The levain is your engine. There is no commercial yeast in this loaf, so a strong, active levain is the whole game. Build it from a starter that is already lively.

1. Mix the levain. Stir the starter, flour, and water together until smooth. Cover it loosely.
2. Ripen until it floats. Let it sit at around 76F (24C) until it has roughly doubled, looks domed and bubbly, and passes the float test: drop a small spoonful in water and it should float. In a warm kitchen this is 4 to 6 hours. Cooler, it can take 8 or more.

Wait: PT6H

Tip: Build this at night for a morning bake day, or in the morning to mix in the afternoon. A levain caught right at its peak gives you the best rise and the cleanest flavor.

Mix and Fermentolyse (Bring it together, then let it rest)

This is a fermentolyse: the levain goes in with the flour and liquid from the start, then rests before the salt. That rest hydrates the flour and gives the dough a head start on strength.

1. Combine and rest. In a large bowl, mix the ripe levain, flour, warm milk, water, and honey until no dry flour remains. Cover and rest for 30 to 45 minutes.
2. Add the salt. Sprinkle the salt over the dough and pinch and fold it in until it disappears. A splash of water on top helps it work in.
3. Work in the oil. Drizzle in the olive oil and work it through the dough. It will feel slippery and want to slide apart at first. Keep folding and pinching until it comes back together smooth. Develop with a few minutes of slap and folds, or 4 to 5 minutes in a mixer on medium-low.

Tip: Adding oil after the dough has come together lets you build gluten first, then soften it. Dumping it in at the very start fights the structure you are trying to build.

Bulk Fermentation (The first rise, with folds)

Sourdough takes its time. The bulk fermentation builds both the rise and the structure through a series of folds. Watch the dough, not the clock.

1. Fold in sets. Over the first 2 hours, give the dough 3 sets of stretch and fold spaced about 30 to 45 minutes apart. Each set: lift one side, stretch it up, fold it over the center, turn the bowl, repeat four times.
2. Rise until alive. After the folds, let the dough finish rising until it is about 50 to 75 percent larger, puffy, and jiggly, with a few bubbles at the surface and edges. At 76F (24C) the whole bulk usually runs 4 to 6 hours, longer in a cool kitchen.

Wait: PT5H

Tip: Temperature runs this whole show. Warm speeds it up, cool slows it down. If your kitchen is cold, find a warmer spot or the rise will drag past bedtime.

Shape the Loaf (Into the pan)

Gentle shaping keeps the air you built and sets up that even sandwich crumb. The full pan method is in the shaping section below.

1. Pre-shape and rest. Turn the dough onto a lightly floured counter, pat it into a rough rectangle, and let it rest 10 minutes so it relaxes.
2. Shape and pan. Roll it into a tight log the length of your pan, seam side down, and set it into a greased 8½ x 4½-inch loaf pan, tucking the ends under.

Tip: Roll it snug and seal the seam as you go. A tight, even roll is what gives you sandwich slices that hold together instead of a crumb full of tunnels.

Final Proof (Counter or cold overnight)

The final proofing sets your texture. With sourdough you have got two good paths: finish it on the counter today, or slow it down overnight in the fridge with a cold retard for deeper flavor.

1. Same-day proof. Cover the pan and let it rise at room temperature until it crowns about 1 inch above the rim, roughly 1½ to 3 hours depending on your kitchen and how lively your starter is.
2. Or cold retard overnight. Cover the pan and refrigerate it overnight, up to about 14 hours. In the morning, let it finish on the counter until it crowns the pan, then bake.
3. Run the poke test. Use the poke test: flour a finger and press the side gently. A slow spring-back that leaves a soft dent means it is ready. A fast spring-back means give it more time.

Wait: PT2H30M

Tip: Sourdough is easy to under-proof because folks get nervous and bake too soon. Let it actually crown the pan. The cold overnight path is the most forgiving way to nail the timing.

Shape the Sandwich Loaf

Built for sandwiches and toast, so the pan method is the one to reach for. The free-form option gives you a rustic Italian look if you would rather slice it on a board.

Pan Loaf (recommended)

The everyday lunch loaf. Even slices, soft crust, perfect for stacking.

1. Pat out. Pat the dough into a rectangle about as wide as your loaf pan is long.
2. Fold in. Fold the two short sides in toward the center so the width matches your pan.
3. Roll tight. Starting from the top, roll the dough down into a tight log, sealing as you go.
4. Pan it. Set the log seam side down in a greased 8½ x 4½-inch pan, tucking the ends under.

Free-Form Italian Loaf

A rustic filone shape for a more open, country look.

1. Shape a log. Roll the dough into a tapered log about 10 inches long, sealing the seam well.
2. Proof seam up. Proof it seam side up in a floured couche or banneton, then flip onto parchment and score before baking on a hot stone or steel.

Proof test: Press the side of the proofed dough with a floured finger. A slow spring-back with a soft dent that fills in slowly means it is ready to bake.

Bake

Honey and milk brown fast, so this bakes gentler than a crusty artisan sourdough. Watch the color and trust the internal temperature.

Oven: 175°C / 350°F. Internal temperature when done: 91°C / 195°F.

Standard Oven, Pan Loaf (recommended)

The simplest path and the right one for a sandwich loaf. No Dutch oven needed.

Equipment: Greased 8½ x 4½-inch loaf pan

1. Preheat. Preheat the oven to 350F (175C) with a rack in the center.
2. Brush for soft crust. Brush the top lightly with a little milk for a soft, golden crust. Stays lean, no butter needed.
3. Bake. Bake 30 to 35 minutes, until deep golden and the internal temperature reads 195F (91C). Sourdough likes to be baked a few degrees higher inside than a yeasted loaf. If the top browns too fast, tent it loosely with foil.
4. Cool. Turn it out of the pan within a few minutes and cool it fully on a wire rack before slicing. A warm sourdough loaf cuts gummy. Give it at least an hour.

Standard Oven, Free-Form Loaf

For the rustic filone shape baked on a hot surface.

Equipment: Baking stone or steel, parchment

1. Preheat with stone. Preheat to 400F (205C) with a baking stone or steel inside for at least 30 minutes.
2. Score and steam. Score the loaf, slide it in on parchment, and add a splash of water to a hot pan below for steam. Bake 28 to 32 minutes to 200F (93C) internal.

Note: The thermometer is your truth. Color says it is close, but 195F (91C) in the center of a pan loaf says it is done.

Storage

• Room temperature: 4 to 5 days in a bread bag or wrapped in cloth. The sourdough acids plus the olive oil and milk keep this one soft longer than the yeasted version.
• Refrigerated: Skip the fridge. It stales bread faster, not slower.
• Frozen: Up to 3 months. Slice it first, then freeze, so you can pull out exactly what you need.
• Refresh: Toast slices straight from frozen, or warm the whole loaf at 350F (175C) for 8 to 10 minutes.

Frequently Asked Questions

How do I know my levain is ready?

It should be domed and bubbly, roughly doubled from where it started, and it should pass the float test: a small spoonful dropped in water floats. If it sinks, it needs more time, or your starter was not active enough going in. A sluggish levain makes a dense loaf, so do not rush this part.

Does the milk count as full hydration?

Not quite. Milk is roughly 87 percent water, so the 120g of milk behaves a little drier than straight water. On paper the loaf reads 65 percent, but the true water content sits closer to 61 percent. That is part of what keeps the crumb tender.

Can I speed it up with a pinch of commercial yeast?

You can. Adding a quarter teaspoon of instant yeast to the final dough makes this a hybrid loaf that rises faster while still carrying sourdough flavor. It is a fine middle road on a busy day. If you want the fully yeasted version with no starter at all, I built that one too: the yeasted version uses a sponge instead.

Can I cold proof it overnight?

Yes, and I would. After shaping and panning, cover the loaf and refrigerate it overnight, up to about 14 hours. Finish proofing on the counter in the morning until it crowns the pan, then bake. The cold rest deepens the flavor and makes the timing far more forgiving.

Can I use sourdough discard instead of active starter?

Not for the levain. Discard is past its peak and will not give you enough lift for a sandwich loaf with no backup yeast. You need an active, recently fed starter to build the levain. Save the discard for crackers or pancakes.

My sourdough version came out denser than the yeasted one. Why?

Almost always one of two things: the levain was not ripe enough when you mixed, or the dough was under-proofed and went into the oven too soon. Sourdough moves slower than yeast, so it needs a livelier start and a longer final proof. Let it actually crown the pan before you bake.

Can I use all-purpose flour instead of bread flour?

You can. It will be a touch softer with a little less chew. Bread flour gives the structure that stands up to sandwich fillings. If you switch to all-purpose, hold back about 10g of water since it drinks a little less.

Nutrition

Per serving (1 slice): 145 calories, 27g carbohydrates, 4g protein, 2.5g fat, 1g fiber, 260mg sodium. Makes 12 servings.