🫐 Blueberry Sourdough Bread — Full Recipe

Yield: 1 large boule
Prep/fermentation: about 12–18 hours
Bake: 45–55 minutes
Difficulty: Intermediate
Best flour: Bread flour
Nuts: None required

Ingredients
Main dough
Ingredient Amount Baker’s %
Bread flour 500 g 100%
Water 350 g 70%
Active sourdough starter 100 g 20%
Salt 10 g 2%
Honey or maple syrup 30 g 6%
Fresh or frozen blueberries 150–180 g 30–36%

Optional

1 tsp vanilla extract
1–2 tsp lemon zest
1 tbsp sugar, if you want a sweeter bread
50–75 g chopped pecans or walnuts, if desired

Nut information: The base recipe contains no tree nuts or peanuts. If adding nuts, use about 50–75 g and make sure your flour, starter, chocolate, etc. haven’t been cross-contaminated if you’re baking for someone with an allergy.

1. Prepare your sourdough starter

Use starter that is active, bubbly, and roughly doubled in volume after feeding.

A simple feeding:

25 g mature starter
50 g water
50 g bread flour

Mix and leave somewhere warm until doubled and bubbly, usually 4–8 hours, depending on temperature and starter strength.

How do you know it’s ready?

Your starter should:

Have lots of bubbles
Look expanded rather than flat
Smell pleasantly tangy/yeasty
Ideally double in volume within several hours of feeding

A float test isn’t necessary; rise and activity are more useful indicators.

2. Mix the dough

In a large bowl combine:

500 g bread flour
325 g of the water

Hold back about 25 g water.

Mix until there are no obvious dry patches.

Cover and let rest for 30–60 minutes.

This is the autolyse/rest period.

3. Add starter and remaining ingredients

Add:

100 g active starter
30 g honey or maple syrup
10 g salt
Remaining water, gradually
Optional vanilla and lemon zest

Mix thoroughly using your hands or a dough whisk.

The dough will initially feel sticky.

That’s normal.

Important

Don’t add all the blueberries immediately. They can get crushed during intensive mixing and release a lot of juice into the dough.

4. Develop the dough

Let the dough rest for about 30 minutes.

Then perform a series of stretch-and-folds.

Stretch and fold

Grab one side of the dough, stretch it upward, and fold it over itself.

Rotate the bowl and repeat.

Do approximately:

4 folds = 1 set

Perform a set every 30 minutes for the first 2 hours.

Usually 4–5 sets are enough.

By the end, the dough should become:

Smoother
More elastic
Stronger
Less sticky
Able to hold its shape better
5. Add the blueberries

This is one of the most important parts.

After the dough has developed some strength, gently incorporate the blueberries.

Fresh blueberries

Wash and dry them extremely well.

Wet berries introduce additional water into the dough.

Frozen blueberries

You can use frozen blueberries, but don’t thaw them first.

Add them frozen.

Gently flatten the dough into a rectangle, distribute the berries over it, and fold the dough over itself.

Try not to knead aggressively.

Some blueberries will inevitably break. That’s okay.

The purple streaks in the finished bread are actually part of what makes this loaf look beautiful.

6. Bulk fermentation

Cover the bowl.

Let the dough ferment at approximately:

75–78°F / 24–26°C

for roughly 4–7 hours.

Don’t rely exclusively on the clock.

Look for the dough to increase in volume by approximately 50–75%.

You should see:

Bubbles around the edges
A slightly domed surface
Dough that feels airy
Some jiggle when the bowl is moved
Don’t wait for it to completely double.

With sourdough, especially a blueberry-filled dough, waiting for a full doubling can result in over-fermentation.

7. Pre-shape

Lightly flour your work surface.

Turn the dough out gently.

Form it into a loose round.

Don’t aggressively deflate it.

Let it rest for approximately 20–30 minutes uncovered.

This is called the bench rest.

8. Final shaping

Shape the dough into a tight boule.

One simple method:

Pull the top portion toward the center.
Pull the bottom toward the center.
Fold the sides inward.
Turn it over.
Gently drag the dough toward yourself to create surface tension.
Rotate and repeat.

You want a smooth, taut outer surface.

Be gentle because the blueberries can tear through the dough.

9. Cold proof

Place the shaped loaf seam-side up into a well-floured banneton or bowl lined with a floured kitchen towel.

Cover.

Place in the refrigerator for:

8–16 hours

Overnight is ideal.

Cold fermentation improves:

Flavor
Crust
Dough structure
Ease of scoring
10. Preheat the oven

Place a Dutch oven inside your oven.

Preheat to:

475°F / 245°C

for at least 45 minutes.

A thoroughly heated Dutch oven gives the loaf strong oven spring.

11. Score the bread

Take the cold dough directly from the refrigerator.

Turn it onto parchment paper.

Dust off excess flour.

Score with a bread lame or very sharp knife.

A simple:

one long curved slash

works beautifully.

You can also make a decorative wheat pattern.

12. Bake

Place the loaf into the hot Dutch oven.

Covered

Bake at:

450°F / 232°C for 25 minutes

Then remove the lid.

Uncovered

Reduce to:

425°F / 218°C

and bake another 20–25 minutes.

The crust should be deeply golden brown.

If the loaf is getting too dark, reduce the temperature slightly.

13. Cool completely

This is VERY important.

Do not cut the loaf immediately.

Let it cool on a wire rack for at least:

2 hours

The interior continues setting as it cools.

Cutting too early can make the crumb look gummy even when the bread is properly baked.

🫐 What the finished bread should look like

You should get:

Crisp golden-brown crust
Slightly blistered surface
Soft, chewy crumb
Blueberry pockets throughout
Purple/blue streaks where berries burst
Mild sourdough tang
Light sweetness from the honey
Strong blueberry flavor
Nutrition — approximate

For the basic recipe, using 500 g bread flour, 100 g starter, 30 g honey and 150 g blueberries:

Entire loaf: approximately 2,400–2,600 calories

If cut into 12 slices, approximately:

Nutrition Per slice
Calories ~200–215 kcal
Carbohydrates ~40–43 g
Protein ~6–7 g
Fat ~1–2 g
Fiber ~2 g
Sugar ~7–9 g

These are estimates. Actual nutrition varies substantially with the flour, starter hydration, blueberries and honey used.

Nuts

Base recipe: 0 g nuts.

If adding 75 g walnuts or pecans, the calories and fat increase considerably. For allergy-sensitive baking, check every packaged ingredient for “may contain” statements.

⭐ Optional Lemon-Blueberry Version

This is my favorite variation.

Add:

1–2 tsp finely grated lemon zest
1 tsp vanilla

The lemon cuts through the sourdough tang and makes the blueberries taste brighter.

🍫 Blueberry Chocolate Version

Add:

100–125 g blueberries
75–100 g dark chocolate chunks

Chocolate works particularly well with the slightly sour fermented dough.

🌰 Blueberry Walnut Version

Add:

150 g blueberries
60–75 g toasted chopped walnuts

Toast walnuts at 350°F / 175°C for about 7–10 minutes, cool completely, then incorporate them with the blueberries.

Do not add hot nuts to the dough.

❓Frequently Asked Questions
Why is my dough much wetter than the one in the photo?

Blueberries release water, particularly when crushed.

Next time:

Dry fresh blueberries very well.
Don’t thaw frozen blueberries.
Reserve some of the dough water initially.
Add additional water only if the dough can handle it.
Can I use frozen blueberries?

Yes.

In fact, frozen blueberries can work very well.

Use them straight from the freezer rather than thawing them.

Thawed berries release substantially more juice.

Why did my bread turn purple?

That’s completely normal.

When blueberries break during mixing, their juice spreads through the dough.

You’ll get purple streaks and pockets.

For less purple color, incorporate the berries very gently and later in the fermentation process.

Why did my blueberries sink?

Usually one or more of these:

Dough wasn’t strong enough.
Too many blueberries.
Berries were very wet.
Bulk fermentation went too far.
Dough hydration was too high.

The stretch-and-folds are particularly important for this recipe.

Can I use whole-wheat flour?

Yes, but I wouldn’t replace all the bread flour.

Try:

400 g bread flour + 100 g whole-wheat flour

You may need approximately 10–20 g additional water.

Can I use all-purpose flour?

Yes.

However, bread flour generally gives you a stronger dough and better ability to hold the heavy blueberries.

If using all-purpose flour, start with slightly less water.

Do I have to use honey?

No.

You can substitute:

Maple syrup
Sugar
Agave

Or omit it entirely.

The bread will be less sweet and may brown slightly differently.

Can I make this without sourdough starter?

Yes, but it becomes a different recipe.

For a yeast version, you could use approximately 7 g instant yeast and reduce the fermentation time substantially.

Don’t use the sourdough fermentation schedule with commercial yeast.

Why didn’t my bread rise?

The most common causes are:

Weak starter → insufficient fermentation
Cold kitchen → fermentation takes longer
Over-fermentation → dough loses strength
Under-fermentation → dense interior
Weak gluten → dough can’t hold the blueberries

The starter should be very active before you begin.

Why is the center gummy?

Possible causes:

Bread was underbaked.
Loaf was cut while still hot.
Too much blueberry juice.
Dough was over-hydrated.
Fermentation was off.

Bake until the crust is deeply golden and allow the loaf to cool completely.

For the most reliable result, the internal temperature should be around 205–210°F / 96–99°C.

Can I bake it without a Dutch oven?

Yes.

Preheat a baking stone or heavy sheet pan.

Put the loaf in the oven and add steam using a suitable method such as a preheated metal pan with hot water.

Bake around 450°F / 232°C, then reduce the temperature after the first 15–20 minutes.

A Dutch oven is simply much easier for getting good steam and oven spring.

Can I make the dough the night before?

Absolutely.

The easiest schedule is:

Morning: mix dough
Afternoon: bulk ferment + shape
Evening: refrigerate
Next morning: bake

Or you can mix in the evening, bulk ferment overnight if your kitchen is cool, shape in the morning, and bake later.

How should I store it?

Once completely cool:

Store at room temperature in a bread bag or loosely wrapped.
Best within 2–3 days.
Don’t refrigerate unless necessary; refrigeration makes bread stale faster.

For longer storage, slice and freeze.

Can I freeze it?

Yes.

For best results:

Cool completely.
Slice.
Wrap tightly.
Place in a freezer bag.
Freeze for up to about 2–3 months.

Toast slices directly from frozen.

🔥 Most important tips for getting the loaf like your photo

1. Use a very active starter.
This determines much of the rise.

2. Don’t overload the dough with blueberries.
150–180 g is a good starting point for 500 g flour.

3. Keep the blueberries dry.

4. Develop gluten before adding the berries.

5. Don’t aggressively knead after adding blueberries.

6. Watch the dough rather than the clock during bulk fermentation.

7. Cold-proof overnight.

8. Preheat the Dutch oven thoroughly.

9. Bake until deeply golden.

10. Let it cool completely before slicing.

Baker’s percentage version

If you want to scale the recipe, use:

100% flour
70% water
20% starter
2% salt
6% honey