Sourdough Inclusions: How to Add Seeds, Olives, Cheese, Fruit, and More

Adding things to sourdough is where bread starts getting fun, and also where doughs start acting weird.

A handful of toasted sesame seeds is not the same as a cup of chopped olives. Dried fruit can steal water. Olives bring brine. Cheese brings fat. Some ingredients fold in cleanly, some tear the dough, and some taste great while quietly changing the formula underneath.

So the real question is not just what can you add to sourdough. It is what does that ingredient do once it is in the dough?

The short answer

Most sourdough inclusions should be measured as a percentage of flour weight.

If your dough uses 500g flour and you want to add 20% inclusions, that means:

That works for seeds, nuts, dried fruit, cheese, olives, herbs, chocolate, roasted garlic, pickled peppers, and plenty of other things. Once you think in percentages, you can scale the loaf without guessing.

A good starting range:

Those are not hard rules. They are starting points. A 15% sesame loaf feels modest. A 30% olive loaf feels loaded. Both can work, but they do not handle the same way.

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Start with a simple 500g flour sourdough base before adding inclusions.

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When to add inclusions

Add most inclusions after the dough has had some time to develop strength.

For a typical sourdough loaf, that usually means:

• Mix the dough.
• Rest it for 20-60 minutes.
• Add salt if you hold it back.
• Do one or two folds.
• Add inclusions during a fold once the dough is already holding together.

That timing matters. If you add chunky ingredients right at the beginning, they can get in the way of gluten development. The dough has not had a chance to become elastic yet, so the inclusions drag through it instead of getting wrapped by it.

There are exceptions. Fine spices, cocoa powder, herbs, and small seeds can go in earlier because they distribute like part of the dough. Big things like olives, nuts, cheese cubes, dried fruit, roasted garlic, and chocolate are usually better folded in later.

The goal is simple: build the dough first, then tuck the inclusions into it.

Dry inclusions are the easiest place to start

Dry inclusions are things like seeds, nuts, dried herbs, spices, toasted grains, and some dried fruit.

They are usually the easiest because they do not bring much free water into the dough. You can add them as a percentage ingredient and move on.

For example, a seeded sourdough might look like this:

• 500g flour
• 75% water
• 20% starter
• 2% salt
• 15% toasted seeds

That means 75g seeds for a 500g flour dough.

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Open a seeded sourdough formula with toasted seeds at 15%.

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Seeds are easy, but they still have one catch: some of them drink water. Flax, chia, and coarse cracked grains can pull moisture from the dough during fermentation. If you add a lot of them dry, the dough may feel fine at mixing and then tighten up later.

For thirsty seeds, soak them first. Weigh the seeds, add hot water, let them sit until cool, then add the soaked mixture to the dough. The exact water depends on the seed, but the idea is the same: let the seed drink before it goes into the dough.

Wet inclusions need more judgment

Wet inclusions are ingredients that carry obvious moisture:

• roasted peppers
• caramelized onions
• roasted garlic
• cooked grains
• fresh fruit
• sauteed mushrooms
• grated zucchini

These can be wonderful, but they make dough less predictable. Some release water slowly. Some look dry on the cutting board but leak during fermentation. Some make the dough feel looser without changing the official hydration number.

There are two practical ways to handle this.

First, drain or cook off as much loose water as you can. Roasted vegetables should not go into dough dripping wet. Mushrooms should be cooked until they give up their water. Fresh fruit should be used carefully because it can break down and leak.

Second, start with slightly less water in the dough. If your normal plain loaf is 75% hydration, a wet-inclusion loaf might start closer to 70-72%. You can always add a splash of water during mixing if the dough feels tight.

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Open a lower hydration base for roasted peppers or other wet inclusions.

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I would not over-math this at home. If you know exactly how much water an ingredient contributes, great. But most of the time, the useful move is simpler: drain it well, lower the dough hydration a little, and pay attention during mixing.

Brined inclusions bring water and salt

Olives, pickled jalapenos, capers, pepperoncini, and other brined ingredients have their own little problem. They bring water, but they also bring salt.

If you add a lot of olives to a dough, you are not just adding olive flavor. You are adding brine, and brine changes how salty the finished loaf tastes. A 25% olive loaf with the same 2% salt as a plain loaf can taste much saltier than you expect.

You have a few options:

• Drain brined ingredients well.
• Pat them dry if they are wet on the surface.
• Cut the dough salt slightly if you are adding a lot.
• Start with slightly lower hydration if the inclusion is very wet.

For olives, I usually think in the 20-30% range. Less than that can feel scattered. More than that can be great, but it becomes a loaded loaf and the dough will handle differently.

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Open an olive sourdough formula with 25% drained olives and slightly reduced salt.

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Notice the small salt adjustment there. It is not a universal rule. It is a nudge. If your olives are mild and well drained, 2% salt may still be fine. If they are aggressively salty, 1.8% may taste better.

Cheese and fatty inclusions change the feel of the dough

Cheese, cured meat, nuts, and oily ingredients behave differently from vegetables or fruit. They do not just add weight. They can soften the eating texture and sometimes interfere with structure.

Cheese is the big one. A little shredded cheese disappears into the dough. Cubes give you pockets. A lot of cheese can make the crumb feel softer and richer, and it can leak fat as the loaf bakes.

A useful starting point:

• 15% cheese for a subtle loaf
• 20-25% for a clearly cheesy loaf
• 30% or more for a loaded loaf

For jalapeno cheddar sourdough, I would usually start around 20-25% cheddar and 5-10% drained jalapenos. That gives you enough flavor without turning the dough into a mess.

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Open a jalapeno cheddar sourdough formula with cheese and drained peppers.

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Fold cheese in gently. If the pieces are sharp or cold and hard, they can cut through the dough. Small cubes or coarse shreds are usually easier to distribute than big chunks.

Dried fruit is dry, but it still changes hydration

Dried fruit is sneaky. It looks like a dry inclusion, but it pulls water from the dough.

Raisins, cranberries, figs, apricots, dates, and cherries all behave this way. If you add them dry, they can make the dough feel tighter as fermentation goes on. They can also scorch if they sit exposed on the surface of the loaf.

The fix is simple: soak them first.

Cover the fruit with hot water, tea, juice, or whatever liquid fits the bread. Let it plump, drain it well, then fold it into the dough. If the soaking liquid tastes good, you can use some of it as part of the dough water, but keep the math clear.

A fruit and nut loaf might look like:

• 500g flour
• 76% water
• 20% starter
• 2% salt
• 20% soaked dried fruit
• 15% walnuts

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Open a fruit and walnut sourdough formula with soaked dried fruit and walnuts.

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One practical note: keep fruit away from the outside of the loaf when shaping. Tuck exposed pieces in if you can. Fruit on the surface can burn before the bread is fully baked.

Sweet inclusions can speed up browning

Chocolate, cinnamon sugar, candied peel, sweetened dried fruit, and similar ingredients are usually measured as percentage additions too. They are easy to add, but they change how the loaf bakes.

Sugar browns fast. Chocolate melts. Cinnamon can slow fermentation a bit if you use a lot. None of this means you should avoid sweet inclusions. It just means you should watch the bake.

For chocolate sourdough, 15-25% chocolate is a reasonable range. Use chunks if you want pockets. Use chopped chocolate if you want it more distributed.

For cinnamon raisin, keep the cinnamon modest unless you know what you like. A little goes a long way, and a heavy cinnamon swirl can separate the dough layers if it is packed in too thick.

How much is too much?

There is no exact ceiling, but dough gets harder to manage as inclusions go up.

At 10-15%, most inclusions are easy.

At 20-30%, the loaf is clearly flavored but still manageable.

At 40% or more, you are asking the dough to carry a lot. It can work, but shaping gets harder, gluten can tear, and the loaf may spread more.

The size of the inclusion matters too. Twenty percent sesame seeds is not the same experience as twenty percent whole olives. Small things distribute evenly. Big things create weak spots.

If you are trying an inclusion for the first time, start lower than your imagination wants. You can always add more next bake.

A good base formula for testing inclusions

When I am testing a new add-in, I do not start with a complicated dough. I want the inclusion to be the only new variable.

Use something like this:

• Bread flour: 100%
• Water: 72-75%
• Starter: 20%
• Salt: 2%
• Inclusion: 15-25%

That is enough structure to tell you what the ingredient is doing. If the dough gets slack, lower the water next time. If it feels tight, raise it. If the flavor disappears, increase the inclusion. If the loaf feels crowded, back it down.

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Open a flexible base formula for testing a new sourdough inclusion.

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Once the bread works, then you can make it more personal. Add whole grain. Change the flour. Toast the seeds harder. Use different cheese. Change the shape. But get the base loaf right first.

The simple rule

Treat inclusions as part of the formula, not as an afterthought.

That does not mean every olive needs a lab report. It means you should know what you are adding, how much you are adding, and whether it brings water, salt, fat, sugar, or sharp edges into the dough.

If it is dry and simple, add it as a percentage.

If it is wet, drain it and consider lowering hydration.

If it is brined, think about salt.

If it is chunky, fold it in after the dough has some strength.

That is most of the game. The rest is taste, and that part is why you are adding things in the first place.