Blueberry Lemon Sourdough Bread
A sweet sourdough loaf with fresh blueberries and bright lemon zest folded through an active-starter dough for a fruity, tangy crumb.
By Maya Ellison · Reviewed by Maya Ellison · Updated August 29, 2026 · 2 min read
Blueberry lemon sourdough bread is a sweet, summery loaf: fresh blueberries and bright lemon zest folded through an active-starter dough for a fruity, tangy crumb with pockets of jammy berry. It's softer and a little richer than a plain boule, but still honestly sourdough — no quick bread shortcuts. Toast a slice and the lemon wakes up.
Why this recipe works
A touch of honey feeds the starter and softens the crumb, while lemon zest adds aroma without enough acid to stall fermentation. Folding the floured berries in late keeps them suspended and contained. The long cold proof lets the fruit flavor steep into the dough.
| Ingredient | Percentage | Weight |
|---|---|---|
| Bread flour | 100% | 450 g |
| Water | 67% | 300 g |
| Active starter | 22% | 100 g |
| Salt | 2.2% | 10 g |
Keep hydration moderate so the berries don't make the loaf slack.
Folding in the berries
Laminate the dough flat after bulk has started, scatter the floured blueberries, then fold to trap them in a single layer. Stirring them into the mix tears gluten and leaves bare spots. A few berries on the scored surface look great going in.
Common mistakes
- Purple, soggy crumb: berries added too early or unfloured. Fold in late and coat them.
- Gummy near fruit: under-baked or sliced hot. Bake through and cool fully.
- Faded lemon: used only juice. Zest carries the aroma; juice alone is mostly acid.
- Flat loaf: over-proofed with the extra sugar. Watch the cold proof timing.
Before you bake
Peak your starter with the sourdough starter guide, and read the sourdough inclusions guide before swapping fruit. The scoring guide helps cut a berry-heavy crust, and fixes are in the sourdough troubleshooting hub. Start from the sourdough bread recipe.
Ingredients
Weights in grams are the source of truth; cup measures are approximate.
- 450 g bread flour
- 300 g water at 80°F / 27°C
- 100 g active sourdough starter, at peak
- 10 g fine sea salt
- 40 g honey or sugar
- Zest of 2 lemons (about 6 g)
- 180 g fresh blueberries, tossed in flour
- 15 g lemon juice (optional, in the dough)
Method
Mix the flour, water, starter, salt, honey and lemon zest into a shaggy dough. Rest 30 minutes.
Bulk ferment 4 hours at 74-76°F with three stretch-and-folds 30 minutes apart in the first 90 minutes.
During the last fold, laminate the dough flat and scatter the floured blueberries across it, then fold up to enclose so they don't all sink.
Shape into a boule or batard, place seam-side up in a banneton, and cold-proof 12-16 hours in the fridge.
Preheat a Dutch oven to 475°F (245°C). Flip the dough onto parchment, score, and bake covered 25 minutes, then uncovered 18-20 minutes until golden.
Cool completely on a rack, at least 2 hours, so the berry juices set.
Frequently asked questions
Why toss the blueberries in flour first?
The light coating absorbs surface moisture and keeps them from bleeding dye and sinking through the wet dough, so you get distinct berries instead of purple streaks.
Won't the lemon make it taste like cleaner dough?
Lemon zest is aromatic, not acidic enough to harm the starter; it just adds bright top notes that lift the berries. The honey rounds the sour tang.
Can I use frozen blueberries?
Yes, but don't thaw them — fold in still frozen and expect a bit more color bleed. Fresh gives the cleanest result.
Why is my crumb gummy near the fruit?
Under-baked or sliced hot. Berries add water, so bake fully and cool the full two hours before cutting.