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Sourdough Discard Sandwich Loaf

A soft, slightly tangy sandwich bread made with unfed sourdough discard and instant yeast, perfect for sandwiches or toast.
Prep Time 30 minutes
Cook Time 45 minutes
Total Time 3 hours
Course Bread, Breakfast, Snack
Cuisine American
Servings 12 servings
Calories 150 kcal

Ingredients
  

Main Ingredients

  • 100 g sourdough discard (unfed starter) — room temperature
  • 250 g water — lukewarm (around 25–30°C / 77–86°F)
  • 500 g bread flour (or all-purpose flour) Bread flour gives a slightly chewier crumb; AP flour works fine for a softer loaf.
  • 10 g salt
  • 20 g sugar Reduce to 10 g if you prefer less sweetness.
  • 60 g salted butter, room temperature (or unsalted + pinch more salt) Use vegan butter or 60 g neutral oil if you need dairy-free.
  • 7 g instant yeast

Instructions
 

Preparation

  • In the bowl of a stand mixer, combine the sourdough discard, water, and flour. Mix briefly until the dough forms a shaggy mass — about 20–30 seconds. Stop when ingredients are roughly combined.
  • Cover and let the dough rest for 30 minutes, this autolyse softens the flour and develops gluten without much kneading.
  • Add salt, sugar, softened butter, and instant yeast to the bowl.
  • Knead on medium-low for about 3–6 minutes until the dough is smooth, elastic, and slightly tacky.
  • Transfer the dough to a lightly oiled bowl. Cover and let it rise until doubled — about 1 hour in a warm kitchen.
  • While the dough rises, lightly butter a sandwich loaf or Pullman pan.

Shaping & Proofing

  • Once doubled, turn the dough out onto a lightly floured surface, smooth side down, and gently press into a rectangle.
  • With the short side facing you, fold each long side into the center then roll into a tight log. Pinch the seam and tuck the ends.
  • Place the shaped loaf seam-side down into the prepared pan.
  • Cover and proof until the dough comes just above the rim of the tin — about 45–75 minutes depending on ambient temperature.

Baking

  • Preheat the oven to 180°C/350°F about 10–15 minutes before baking.
  • Lightly mist the top of the loaf with water and place it in the oven with plenty of room to rise.
  • Bake for 40–45 minutes, until the crust is deep golden brown, and the internal temperature should reach about 200°F (≈93°C) for a fully baked loaf.
  • Remove the loaf from the pan and cool completely on a wire rack before slicing.

Notes

Store at room temperature in a bread bag or wrapped in a tea towel for 2–3 days. Slice and freeze for up to 3 months. Reheat stale bread wrapped in foil at 150°C/300°F for 10–15 minutes.
Keyword Homemade Bread, Instant Yeast, Sandwich Loaf, Sourdough Bread, Sourdough Discard