| Prep | 10 minutes |
| Cook | 25 minutes |
| Total | 35 minutes |
| Serves | 4 (about 1 ½ cups each) |
| Protein | About 23 g per bowl with bone broth, about 18 g with regular broth (estimate) |
| Equipment | Large Dutch oven or heavy pot, blender or immersion blender |
If your lighter mushroom soups come out thin, or the cottage cheese you stirred in broke into little white flecks, the problem is almost always heat and timing, not the cottage cheese itself. Added cold to a boiling pot, it seizes. Blended first with a little warm broth and stirred in off the boil, it melts into the soup and gives it the same body heavy cream would.
That is the whole method here. Mushrooms are browned hard for flavor, simmered briefly in broth, and finished with two cups of silky blended cottage cheese. No flour, no cream, about 35 minutes start to finish, and a bowl that keeps you full well into the afternoon.
Ingredients
For the mushroom base
- 1 ½ lb (680 g) cremini mushrooms, sliced – cremini (baby bella) have more flavor than white button mushrooms and brown better.
- 2 tablespoons olive oil – or 1 tablespoon oil plus 1 tablespoon butter for a rounder taste.
- 1 medium yellow onion, finely diced – sweetness to balance the earthy mushrooms.
- 3 cloves garlic, minced
- 1 teaspoon fresh thyme leaves (or ½ teaspoon dried) – the classic herb with mushrooms.
- 1 tablespoon soy sauce – deepens the savory flavor and helps lift the browned bits from the pot.
- 3 cups low-sodium chicken bone broth – bone broth adds noticeably more protein than regular broth; vegetable broth works for a meat-free soup.
To finish
- 2 cups (about 450 g) cottage cheese, 2% or 4% – this is the cream and most of the protein. Full-fat blends the silkiest.
- 1–2 teaspoons lemon juice – a little acid wakes the whole pot up.
- ½ teaspoon salt and ½ teaspoon black pepper, adjusted at the end – cottage cheese and soy sauce are both salty, so taste first.
How to Make It
1. Brown the mushrooms – 8 to 10 minutes, medium-high heat
Heat the oil in a large Dutch oven over medium-high heat. Add the mushrooms in an even layer and leave them alone for 4 minutes before stirring, then keep cooking, stirring now and then, until the liquid they release has evaporated. The mushrooms should be shrunk by about half, golden brown at the edges and sizzling, not sitting in juice.
2. Add the onion, garlic and thyme – 6 minutes
Lower the heat to medium. Add the onion and cook for about 5 minutes, then stir in the garlic and thyme for 1 minute more. Scoop out a few spoonfuls of mushrooms and set them aside for the top. The onion should be soft and translucent and the garlic fragrant, without browning.
3. Deglaze and simmer – 10 minutes
Add the soy sauce and a splash of the broth, scraping up the brown layer on the bottom of the pot. Pour in the rest of the broth, bring to a gentle boil, then lower the heat and simmer for 10 minutes. The broth should be deep tan and taste strongly of mushroom.
4. Blend the cottage cheese – 1 minute
While the soup simmers, put the cottage cheese in a blender with about ½ cup of the hot broth and blend until completely smooth. It should look like thick, pourable cream with no visible curds.
5. Blend and finish the soup – 3 minutes, low heat
Take the pot off the heat and let it stop bubbling. Blend the soup with an immersion blender (or in batches in a blender, with the lid vented), as smooth or chunky as you like. Stir in the cottage cheese mixture, then return the pot to low heat for 2 to 3 minutes, stirring, without letting it boil. The soup should be creamy, steaming and evenly pale beige, with no white specks.
6. Season and serve
Add the lemon juice, then taste and adjust the salt and pepper. Ladle into bowls and top with the reserved mushrooms and a little more thyme. Each bowl should coat the back of a spoon.
Why It Stays Smooth
Cottage cheese is a fresh cheese made of milk proteins, and those proteins tighten and squeeze out liquid when they are heated quickly or boiled. That is what produces the grainy, broken texture people complain about. Three small steps in this recipe prevent it:
- Blending first. Curds that are already smooth have nothing left to separate into.
- Tempering with warm broth. Mixing the cottage cheese with some of the hot liquid brings its temperature up gradually instead of shocking it.
- Finishing off the boil. Once it is in the pot, the soup only needs to be hot, not bubbling.
The same trick works in other creamy soups. Swap the mushrooms for a tray of miso butter roasted mushrooms and you get a richer, roasted version of this soup with the same finish.
Where the Protein Comes From
This is an estimate from standard nutrition values, not a lab analysis, and it depends on your brands. For the whole pot: the cottage cheese gives roughly 50 g of protein, the mushrooms about 17 g, and chicken bone broth somewhere between 20 and 30 g depending on the brand. Divided by four, that is about 23 g of protein per bowl, for roughly 250 calories. With regular broth instead of bone broth, count on closer to 18 g per bowl.
To push it further, stir shredded cooked chicken into each bowl, or serve it next to a scoop of cottage cheese chicken salad on toast. For something crunchy on top, a few crispy cottage cheese chips work much like croutons.
Variations
- Mixed mushrooms: replace up to half the cremini with shiitake or oyster mushrooms for a deeper, woodsier flavor.
- Vegetarian: use vegetable broth; the protein drops to around 17 g per bowl.
- Chunky: blend only half the soup, or skip blending and just stir in the smooth cottage cheese.
- Greens: stir a handful of baby spinach into the hot soup just before serving.
- A heartier bowl: serve with a thick slice of no-knead bread for dipping.
Storing and Reheating
Cool the soup quickly and refrigerate it within two hours; dividing it into smaller containers helps it chill faster. It keeps for 3 to 4 days in the fridge. Reheat it gently over low heat, stirring often, until it is steaming hot all the way through. The University of Illinois Extension recommends reheating leftovers to at least 165°F, which you can reach without letting the soup boil. If it thickens in the fridge, loosen it with a splash of broth.
For the freezer, freeze the mushroom base before adding the cottage cheese. Thaw it in the fridge, bring it back to a simmer, and finish it with freshly blended cottage cheese, as in steps 4 and 5. Dairy that is frozen and thawed tends to turn grainy.
Frequently Asked Questions
Can you taste the cottage cheese?
Not really. Once blended and seasoned, it tastes like a mild, slightly tangy cream. The mushrooms, soy sauce and thyme carry the flavor.
Why did my soup turn grainy?
Usually the cottage cheese was added cold to a boiling pot, or the soup boiled after it went in. Blend it first, temper it with warm broth and keep the heat low from that point on.
Can I use low-fat cottage cheese?
Yes. Fat-free versions blend a little thinner and are slightly more prone to graininess, so be extra gentle with the heat. The 2% and 4% versions give the creamiest result.
Is this mushroom soup good for meal prep?
It reheats well for lunches over three or four days. Store it in single portions and warm each one slowly. For a more filling cold-weather lunch rotation, it pairs well with a pot of cozy autumn wild rice soup.
Can I make it without a blender?
Yes, but the soup stays brothy with whole mushroom slices, and you will need to mash the cottage cheese very well with a fork or whisk it hard with the warm broth before stirring it in.
High Protein Cottage Cheese Mushroom Soup
Ingredients
Method
- Heat the oil in a large Dutch oven over medium-high heat. Add the mushrooms in an even layer and leave them for 4 minutes, then cook, stirring now and then, until their liquid has evaporated and they are golden brown, 8 to 10 minutes in total.
- Lower the heat to medium. Add the onion and cook for about 5 minutes until soft, then stir in the garlic and thyme for 1 minute. Set aside a few spoonfuls of mushrooms for topping.
- Add the soy sauce and a splash of broth and scrape up the browned bits. Add the rest of the broth, bring to a gentle boil, then simmer for 10 minutes.
- Meanwhile, blend the cottage cheese with about 1/2 cup of the hot broth until completely smooth.
- Take the pot off the heat and let it stop bubbling. Blend the soup with an immersion blender (or in batches with the lid vented). Stir in the cottage cheese mixture and warm on low for 2 to 3 minutes without boiling.
- Add the lemon juice, adjust salt and pepper, and serve topped with the reserved mushrooms and thyme.
Notes
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