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Sourdough Sandwich Loaf Recipe

Sliced sourdough sandwich loaf with soft crumb

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A soft, sliceable sourdough sandwich loaf with classic tangy flavor—perfect for everyday meals, toast, and gourmet sandwiches. This recipe includes step-by-step instructions for the best texture and flavor, with pro tips and storage advice.

Ingredients

  • 500g bread flour
  • 350g water
  • 100g active sourdough starter (at 100% hydration)
  • 10g fine sea salt
  • (Optional: 1 tbsp olive oil or melted butter for softer crust)

Instructions

  1. In a large bowl, combine flour and water. Mix until just combined and let rest for 45 minutes (autolyse).
  2. Add sourdough starter and salt. Mix thoroughly by hand or with a stand mixer.
  3. Cover and bulk ferment at room temperature (72–78°F) for 4–5 hours, folding the dough every 30 minutes.
  4. Turn dough onto a floured surface, shape into a log, and place into a greased 9×5” loaf pan.
  5. Cover and proof at room temperature for 1–2 hours or cold-proof in the fridge overnight (8–12 hrs).
  6. Preheat oven to 450°F (232°C). Score the top of the dough and bake uncovered for 20 minutes.
  7. Lower the temperature to 400°F (204°C) and bake for an additional 20–25 minutes.
  8. Remove loaf from pan immediately and cool on a wire rack for at least 1 hour before slicing.

Notes

  • For a whole wheat variation, substitute 25–50% of the bread flour with whole wheat flour
  • Add-ins like seeds, herbs, or raisins can be incorporated during bulk fermentation
  • Avoid cutting the loaf before it’s fully cooled to prevent gumminess
  • Store at room temperature for 4–5 days or freeze in slices for up to 3 months