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Sweets · beginner

Gluten-Free Sourdough Discard Brownies

Key takeaway

Discard brownies slice clean only after a full cool; the wobble in the pan is moisture, not underbaking.

Fudgy, shiny-top brownies with 120g discard. Cocoa, melted chocolate, and an hour of cooling so they slice clean.

By Andrew KittridgeLow-flour fudgy brownies
brownieschocolatediscardsourdoughgluten freevegetarian
Fudgy gluten-free sourdough discard brownies with flaky salt

Prep

15m

Ferment / rest

0h

Bake

24m

Servings

16

Difficulty

beginner

The short answer

Brownies already want moisture. Discard adds tang that keeps them from tasting one-note sweet. Melt 170g chocolate with 80g butter, whisk 150g sugar, 2 eggs, 120g discard, 40g cocoa, 60g 1:1 flour, 3g salt. Bake 350F in an 8-inch pan 22–26 minutes. The center should still wobble slightly. Cool 1 hour. If you want cakey brownies this is the wrong recipe—use muffins.

For the method behind gluten-free structure, read the gluten-free sourdough guide and keep a lively culture with the starter guide.

Why it works

  • Low flour plus chocolate is fudge.
  • Discard acidity sharpens cocoa.

Ingredients

  • 170gbittersweet chocolate, chopped
  • 80gbutter or vegan butter
  • 150gsugar
  • 2 largeeggs
  • 120gunfed gluten-free sourdough discard
  • 5gvanilla extract
  • 40gcocoa powder
  • 60ggluten-free 1:1 flour
  • 3gfine sea salt

Equipment

  • 8-inch pan
  • Parchment

Instructions

  1. 1

    Heat oven to 350F. Line an 8-inch pan with parchment.

  2. 2

    Melt chocolate and butter. Cool 5 minutes.

  3. 3

    Whisk in sugar, then eggs, discard, and vanilla.

  4. 4

    Sift in cocoa, flour, and salt. Fold.

  5. 5

    Bake 22–26 minutes until the edges set and the center is slightly soft.

  6. 6

    Cool 1 hour in the pan.

  7. 7

    Lift out and cut with a hot knife.

  8. 8

    Salt the tops. This is the whole personality of the brownie.

Nutrition

Approximate values per serving. Always verify labels if you bake for celiac safety.

Nutrition facts per serving
NutrientAmount
Calories170 kcal
Protein2 g
Carbs21 g
Fat9 g
Fiber2 g
Sodium90 mg

Substitutions

Eggs
Not easily. Use a brownie mix plus discard only if you accept a different texture.

Storage

Covered 4 days. They get fudgier on day two.

Notes

  • Espresso powder, 2g, deepens chocolate without tasting like coffee.

FAQ

Can I use active starter instead of discard in these brownies?

Yes. Fed starter is milder and puffier. Reduce any baking soda slightly if the batter already tastes very tangy.

How much flour and water is in 100g of discard?

A 100% hydration starter is about 50g flour and 50g water. Reduce those amounts from the rest of the formula so the bake is not gummy.

Is discard safe to eat uncooked?

Treat it like other raw flour batters. Bake or cook it through. Fridge discard should smell pleasantly sour, not rotten.

My discard is very thin.

Stir it, then weigh. If it is far wetter than 100% hydration, use a little less water in the recipe.

How old can discard be?

We use discard within two weeks in the fridge. If it has mold, pink streaks, or a rotten smell, compost it.

Technique

Keep the method close

Psyllium, fermentation temperature, and a celiac-safe starter matter as much as the formula.

Sourdough guideStarter guide

About Andrew Kittridge

Home baker in Indianapolis documenting gluten-free sourdough: psyllium structure, whole-grain blends, and loaves that actually taste like bread.

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