White button, cremini and portobello are all Agaricus bisporus, a white strain and a brown strain sold closed or left to open. So the closest substitute for a cremini is usually on the same shelf for less money. The swap changes how dark your finished dish looks, and with a portobello it also changes how firm the cap is and how much its gills color a sauce.
If you want more flavor, you need a different answer. Adding a small handful of dried mushroom does more for a cremini dish than replacing the cremini would.
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White button mushroom
The same species in a white strain, sold at the same closed stage, so it finishes paler and tastes a little milder. That makes it the better choice in cream sauces.
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Portobello
The brown strain fully mature. Better for roasting because size keeps it from drying out, though the open dark gills will gray a pale sauce unless you scrape them out first.
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Shiitake
A step up rather than a sideways swap. Markedly more savory depth, and the right answer when a recipe tastes thin with cremini in it.
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Cremini plus dried mushrooms
The cheapest way to more flavor. Fifteen grams of dried mushroom and its soaking liquid adds concentrated depth to a cremini dish for little money.
The closest substitute for a cremini is sitting on the same shelf, and it usually costs less. White button mushrooms are the same species in a white strain, and shops sell them at the same closed stage as cremini. Swapping one for the other changes the color of your dish far more than its flavor or its water.
Are cremini and button mushrooms the same?
White button, cremini and portobello are all Agaricus bisporus. Michael Kuo's species page on MushroomExpert describes white button as the white form, with brown strains marketed as cremini and portobello. Portobello is that brown strain left to open fully, and a white button never turns into a cremini with age, because the color comes from the strain.
The water figure rules out the usual explanation for any difference. USDA FoodData Central gives 92.4 grams of water per 100 grams for white button, 92.1 for cremini and 92.8 for portobello. All three sit within one percentage point, so water is not what separates them.
That answers the substitution question before it starts, because you are swapping strain and maturity within one species. Three names cover one organism, and they differ only in these ways:
- White button is the white strain, picked with the veil still closed over pale gills.
- Cremini is the brown strain, picked at the same closed stage.
- Portobello is the brown strain at the mature stage, with the cap flat open and the gills fully exposed.
Brown Color and Flavor
The brown cap adds flavor only indirectly, and certainly less than the price difference implies. Its color is doing two jobs at once. Some Agaricus strains are simply browner than others at the same age, and every strain darkens as it matures.
What actually gives any of the three more presence in a dish is browning in the pan. That reaction speeds up with heat and time and slows while the surface is still wet, and it builds much of the flavor in a cooked mushroom. Before you pay a premium for brown caps, know that the gap between the two is real, small, and largely under your control at the stove.
Tip
If the brown cap tastes better to you, you are tasting browning, not pigment. You can get most of the same effect from a white button by drying the pan out and giving it another two minutes.
What Changes in the Dish
Color changes first, then firmness and the gills. White button and cremini usually reach the shelf at the same closed stage, so swapping one for the other mainly changes the color of the dish and softens the flavor a little. Portobello brings the age difference with it, in the form of open gills and a firmer, chewier cap.
Neither difference is large enough to change a recipe, and two expectations cover almost every swap:
- Swapping to white button, expect a paler dish.
- Swapping to portobello, expect a darker dish and slightly more chew.
The firmness comes with age. Chitin in the cell walls rises as the mushroom matures and peaks in portobello, so an open cap holds its shape and chews more firmly than a closed one. None of this is a reason to leave the shop empty-handed. It only tells you to expect a paler or a darker finish.
Can you use portobello instead?
Yes, with one caveat that most substitute lists leave out. Portobello is the same mushroom with its cap fully opened, so its gills sit exposed, mature and very dark. Those gills carry the color, and they are the one real difference between the stages that you have to plan around.
Key takeaway
Dark gills will gray a pale sauce. In anything creamy, pale or delicate, scrape the gills out with a teaspoon before slicing. You lose a little flavor and keep the color of the dish, which is usually the better trade.
In anything already dark, the gills become an asset. Beef stew, dark gravy and a roasting tray all gain from them, which is part of why shops sell the mature stage for stuffing and grilling. Slicing changes with the stage as well. The wide portobello cap gives long, flat slices, where a cremini gives neat half-moons.
Size is the other difference, and it mostly works in your favor. Large caps hold their moisture through roasting where sliced cremini dries out. For some methods, then, the mature stage is the better choice and more than an acceptable stand-in.
Getting More Flavor From a Different Species
If you want more flavor, you want a different species. Swapping between the three Agaricus forms moves you sideways. When a recipe tastes thin with cremini in it, a portobello will not fix that, because it is the same species.
| Option | What it adds | Cost | Best used |
|---|---|---|---|
| Fresh shiitake | Markedly more savory depth | Higher | Stir fries, braises, anything simmered |
| Dried mushrooms | Concentrated depth, plus soaking liquid | Low per dish | Sauces, risotto, soup |
| Maitake fronds | Nutty, firmer, crisps well | Higher | Roasting and pan-frying |
| Mixed cremini and dried | Most depth per pound spent | Low | Almost anything |
The last row is the answer most people should take. Fifteen grams of dried mushroom added to a pan of ordinary cremini adds concentrated depth for little money. It works because drying concentrates what fresh mushrooms hold in dilute form, and the soaking liquid goes into the dish as well. USDA figures for fresh shiitake and dried shiitake show how much of the weight drying takes out as water.
What if you cannot use mushrooms at all?
Then you are replacing two things separately. Cremini contributes savory depth and a soft browned texture, and no non-fungal ingredient supplies both together. The pairing that works splits those jobs between ingredients.
- For the texture
- Diced aubergine, browned hard, comes closest.
- For the savory depth
- Miso, soy, tomato paste or a splash of Worcestershire.
- For both at once
- Use one of each rather than looking for a single answer.
- What will not work
- Courgette or peppers, which add water and no depth.
- Diced aubergine, browned hard in enough oil, for the texture.
- A teaspoon of miso, tomato paste or soy, for the savory depth.
- Toasted chopped walnuts, if the dish will take them, for a browned bitterness.
Aubergine browned properly in enough oil gives you the texture and none of the savour, and the same browning rules apply to it as to any mushroom. Stirring a teaspoon of miso or tomato paste into the same pan supplies the missing half. Walnuts are the third option and the one people forget, since toasted and chopped small they bring a browned, slightly bitter depth that works in a ragu. Together they come genuinely close in a stew or a ragu, and nowhere near close in a dish where the mushroom is visible and identifiable.
Matching the Mushroom to the Method
Pick by method, because the right mushroom changes with the heat more than with the recipe title. Cream sauce and other pale dishes want white button. As the white strain, picked closed with pale gills, it keeps the color of the sauce where a portobello would gray it. Roasting wants portobello, because the large cap holds moisture through the oven while sliced cremini dries at the edges.
Long braises suit cremini well, because the brown closed cap holds its shape a little longer than white button in slow cooking. Anything raw wants a closed cap, white button or cremini, since no cooking method for cremini is there to rescue the texture and an open portobello eats tough. If you want the brown closed cap reliably, growing them from a brown strain lets you pick at the stage you want, closed for cremini and fully open for portobello.
Edible
Choice edible