Sourdough Sandwich Bread—soft, sliceable, with a tender crumb and just enough tang to make every sandwich feel like it came from a bakery. This is the loaf that replaces store-bought bread entirely.
Sourdough Sandwich Bread
*Makes one 9×5-inch loaf*
Ingredients
Levain (pre-ferment) – make in the morning
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¼ cup active sourdough starter (60g, bubbly and fed)
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¾ cup warm water (170g, around 80°F)
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1½ cups bread flour (190g)
Main Dough
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All of the levain
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¾ cup warm milk (170g, dairy or non-dairy)
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3 tablespoons honey or sugar (40g)
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3 tablespoons melted butter or neutral oil (35g)
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2½ cups bread flour (320g)
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1½ teaspoons salt (9g)
Method
1. Make the Levain (Morning)
Stir together the active starter, warm water, and bread flour in a medium bowl. Cover and let sit at room temperature for 4–6 hours, until it’s doubled, bubbly, and has a domed top. It should smell pleasantly sweet and mildly sour.
2. Mix the Dough (Afternoon)
In a large bowl or the bowl of a stand mixer, whisk together the warm milk, honey, melted butter, and all of the levain until the levain is broken up and mostly dissolved. Add the bread flour and salt. Mix with a dough hook or wooden spoon until a shaggy dough forms. Let it rest, covered, for 30 minutes. (This autolyse step makes the dough easier to handle.)
3. Knead
Knead by hand on a lightly floured surface for 8–10 minutes, or with the stand mixer on medium for 6–8 minutes, until the dough is smooth, supple, and passes the windowpane test (a small piece can stretch thin without tearing). Sandwich bread dough should be soft and very slightly tacky but not sticky. Add flour sparingly; a softer dough makes a softer loaf.
4. Bulk Fermentation
Place the dough in a greased bowl, cover, and let rise until doubled. Sourdough sandwich bread is a rich dough (with butter and milk), so this can take anywhere from 4 to 6 hours at room temperature, depending on your kitchen warmth. You’re looking for the dough to be puffy and hold a gentle fingerprint.
5. Shape
Grease a 9×5-inch loaf pan. Punch the dough down gently, turn it onto a lightly floured surface, and pat it into a rough rectangle about the width of your loaf pan. Roll it up tightly like a jelly roll, pinching the seam closed with your fingers. Tuck the ends under and place it seam-side down in the prepared pan.
6. Second Rise
Cover with greased plastic wrap or a damp towel. Let rise until the dough crests about 1 to 1½ inches above the rim of the pan. This can take 2 to 4 hours. Preheat your oven to 375°F during the last 30 minutes of rising.
7. Bake
Optional but beautiful: brush the top with an egg wash (1 egg beaten with 1 tablespoon milk) for a glossy, deep golden crust. Bake for 35–40 minutes, until the internal temperature reaches 195–200°F and the top is deeply brown. The loaf should sound hollow when tapped.
8. Cool Completely
This is the hardest part. Remove from the pan and let it cool on a wire rack for at least 2 hours before slicing. Cutting warm sourdough sandwich bread compresses the crumb, and you’ll lose that cloud-soft interior. Once cooled, it slices cleanly and holds up beautifully for sandwiches.
Why This Hits Different
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Milk, butter, and honey make this a true enriched dough—softer, with a tighter, even crumb than rustic boules, perfect for PB&J or a club sandwich that doesn’t fall apart.
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The tang is subtle, not overpowering. Overnight levain without the bulk in the fridge gives you flavor without full sour punch, so it plays nice with sweet or savory fillings.
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Toasts like a dream because of the honey, giving you golden brown slices with a tender interior and crisp edges.
Make It Your Own
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Whole Wheat Honey: Swap 1 cup bread flour for whole wheat flour and increase honey to 4 tablespoons for a nutty, slightly denser loaf.
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Herb & Garlic: Add 1 tablespoon dried Italian herbs and 1 teaspoon garlic powder during mixing for the ultimate grilled cheese bread.
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Cinnamon Swirl: Roll the dough out flat before shaping, spread with softened butter, sprinkle heavily with cinnamon sugar, then roll up. The whole kitchen smells like a bakery.
It’s the loaf that makes you feel like a kitchen wizard every time you pull it from the oven.