Soups & Stews
Transforming a simple Knorr cream of mushroom soup into a velvety, restaurant-worthy dish takes just 10 minutes in an Instant Pot—no fancy techniques required. The secret lies in balancing the soup’s rich base with the right textures and temperatures to create a smooth, creamy finish that feels indulgent without effort.
I’ve perfected this method after testing countless variations, ensuring every spoonful delivers that comforting, umami depth you crave.
This recipe delivers foolproof results with minimal ingredients: just the Knorr soup, milk or cream for richness, and optional add-ins like chicken, potatoes, or fresh herbs to customize the flavor.
The Instant Pot’s pressure-cooking function transforms the soup into a silky, velvety texture in record time, making it ideal for busy weeknights or last-minute meals. The key is controlling the heat and adding thickeners gradually to avoid lumps or separation.
What you’ll end up with is a creamy, velvety soup that’s smooth, rich, and perfectly balanced—no graininess or aftertaste. The aroma alone will fill your kitchen with warmth, while the texture is so luxurious it feels like a gourmet restaurant dish.
Serve it with toasted bread, a crisp salad, or as a comforting side to grilled meats for a complete meal. This recipe proves that convenience and sophistication can go hand in hand.
The beauty of this method is its versatility—adjust the thickness by adding more milk, stir in cooked chicken for protein, or fold in sautéed mushrooms for extra depth. It’s the perfect foundation for a quick, satisfying dinner that still feels special. Let’s get cooking!
Ingredients for cream of mushroom soup knorr
Transforming Knorr cream of mushroom soup into velvety perfection requires just these twelve ingredients—simple yet sophisticated.
| Ingredient | Amount | Notes |
|---|---|---|
| Knorr Cream of Mushroom Soup 🍄 | 1 package | 23-ounce can or pouch |
| Heavy Cream 🥛 | 1 cup | Full-fat for optimal richness |
| Whole Milk 🥛 | ½ cup | Adjust for desired thickness |
| Shallots 🧅 | 2 whole | Minced for aromatic depth |
| Garlic Cloves 🧄 | 2 cloves | Minced for subtle umami |
| Fresh Thyme Leaves 🌿 | ¼ cup | Chopped, or 1 tsp dried |
| Butter 🧈 | 2 tbsp | Unsalted, for sauteing aromatics |
| Diamond Crystal Kosher Salt 🧂 | ½ tsp | Adjust to taste |
| Freshly Ground Black Pepper 🌶️ | ¼ tsp | For finishing |
| Chicken Breast 🍗 | 1 lb | Boneless, skinless, optional |
| Baby Potatoes 🥔 | ¾ lb | Halved, optional |
| Extra-Virgin Olive Oil 🫒 | 1 tbsp | For sauteing optional add-ins |
The Knorr soup forms the base, but its quality matters—avoid the powdered version as it lacks depth. For the cream, full-fat heavy cream delivers the richest texture, though half-and-half works in a pinch. Shallots and garlic should be freshly minced for maximum aroma; pre-minced jarred varieties lack the same punch. Sourcing thyme from Whole Foods bulk bins ensures vibrant flavor, while Diamond Crystal kosher salt dissolves cleanly without graininess. The butter should be cold but not frozen for proper sauteing—microwave it 30 seconds if needed.
Substitutions are flexible but impact texture. Half-and-half can replace heavy cream at equal volume, though the soup will be slightly lighter. No shallots? One small yellow onion works, but reduce to half the amount. Fresh thyme unavailable? Dried thyme at one-third the quantity suffices, though fresh delivers superior aroma. For the optional chicken, pre-cooked rotisserie chicken saves time, while frozen baby potatoes can be used straight from the freezer—no thawing required. The olive oil matters only for sauteing; avocado oil has a higher smoke point if needed.
This soup reheats beautifully—simply warm on the stovetop over medium-low heat, stirring frequently to prevent scorching. For optimal freshness, store in an airtight container for up to 5 days in the refrigerator. The texture thickens upon cooling, so add a splash of milk when reheating if needed. Freezes exceptionally well for up to 3 months, though the cream may separate slightly—simply whisk vigorously before serving. Portion into ramekins for individual servings or freeze in ice cube trays for quick additions to other dishes.
Why You'll Love This Recipe
- No Chopping Needed: I swear by this when I’m too tired to dice anything. Sautéing a couple of shallots and garlic cloves is the only prep—no onions to cry over, no mushrooms to slice. The Knorr base does all the heavy lifting.
- Rich Without Effort: That velvety blend of heavy cream and milk? Chef’s kiss. The soup’s earthy mushroom flavor gets a luxurious upgrade, but honestly, the magic happens when you let it simmer just until the edges thicken—no fancy techniques, just patience.
- Pot Pie Night (Or Any Night): Between us, this is my secret weapon for pot pie night—no crust, no fuss. Dump in some cooked chicken or veggies, bake it, and boom: a restaurant-worthy dish. Or serve it over noodles for a lazy Sunday. It’s that adaptable.
- Leftovers That Don’t Suck: I make a double batch because the second night is even better. The flavors meld overnight, and it reheats like a dream—no soggy soup here. Plus, it’s cheap enough to stretch into lunches without guilt. Win-win.
Step-by-step instructions for cream of mushroom soup Knorr recipe
Transform simple ingredients into restaurant-quality velvety soup with this Instant Pot method.
Sauté Aromatics for Flavor Foundation
Heat the 1 tablespoon extra-virgin olive oil in your Instant Pot over medium-high heat. Add the 2 whole shallots and 2 cloves garlic cloves (minced) and sauté for 3-4 minutes until the shallots become translucent and the garlic releases its aroma. You'll notice the kitchen fill with an earthy, sweet fragrance—this is your flavor base.
Add the 2 tablespoons butter and let it melt completely, about 1 minute. Then stir in the 0.25 cup fresh thyme leaves and cook for another 30 seconds until the thyme leaves darken slightly. This step develops the aromatic complexity that separates homemade soup from canned. Remove the pot from heat temporarily to prevent burning the thyme.
Brown Chicken and Potatoes for Depth
Return the Instant Pot to medium-high heat and add the 1 lb chicken breast, cut into 1-inch cubes. Sear for 3-4 minutes until the chicken develops a golden-brown crust on all sides. Remove the chicken and set aside temporarily. In the same pot, add the 0.75 lb baby potatoes (halved) and cook for 2 minutes until they begin to brown slightly.
The browning reaction (Maillard) creates deep, savory flavors that elevate the soup. If the potatoes stick to the bottom, add 1-2 tablespoons water to deglaze and scrape up any browned bits. This prevents flavor loss and ensures every spoonful is packed with taste. Return the chicken to the pot and set aside again.
Build the Velvety Base
Pour in the 1 package Knorr Cream of Mushroom Soup, scraping the bottom to incorporate all the browned bits. Add the 1 cup heavy cream and 0.5 cup whole milk, then stir until smooth. Season with 0.5 teaspoon diamond crystal kosher salt and 0.25 teaspoon freshly ground black pepper. The mixture should look thick but pourable—this is your foundation.
Bring the mixture to a simmer over medium heat for 2 minutes, allowing the flavors to meld. The soup should begin to thicken slightly as the starches in the cream and soup powder activate. This step ensures a silky texture rather than a watery consistency. Taste and adjust seasoning if needed—this is where you can fine-tune the balance of salt and pepper.
Pressure Cook to Perfection
Secure the lid on your Instant Pot and set to high pressure for 4 minutes. The pressure cooking time is short because the soup is already partially cooked from the sautéing and simmering steps. Once the cooking cycle completes, allow a natural release for 10 minutes before quick-releasing any remaining pressure.
During the pressure cooking, the chicken will become tender and the potatoes will soften completely. The natural release allows the flavors to settle and the soup to thicken slightly without curdling. Open the lid carefully—the steam will be intense, and you'll be greeted by the rich aroma of velvety mushroom soup.
Finish and Serve
Use an immersion blender to purée the soup until smooth, or carefully transfer it to a blender in batches (being cautious with hot liquids). Return the puréed soup to the Instant Pot and stir in the chicken and potatoes. The soup should now be completely silky with no visible chunks, though you can leave some texture if you prefer a rustic finish.
Taste and adjust seasoning one final time. Serve immediately with crusty bread or over buttered egg noodles. The soup should coat the back of a spoon and have a luxurious mouthfeel, with the umami depth of the Knorr base balanced by the richness of the cream and the subtle herbal notes from the thyme.
Pro Tips For Making Cream Of Mushroom Soup Knorr
- Sauté Shallots Low: I learned this the hard way—burning shallots turns your soup bitter. Keep the heat at a gentle simmer (just enough to make tiny bubbles) while you dice them, then cook them in the same pot for 3-4 minutes until soft but not golden. No need to rush; slow wins here.
- Deglaze Before Cream: After cooking the shallots and garlic, add a splash of milk or broth and scrape the bottom of the pot with a wooden spoon. This picks up all the flavor stuck there—something Knorr’s powder misses. Skip this, and your soup tastes dull, even with the cream.
- Warm the Cream: Cold heavy cream in hot soup curdles faster than you’d think. Whisk the cream with a splash of milk first, then slowly stir it into the simmering soup off the heat. A few seconds of extra effort keeps your soup silky, not lumpy.
- Season After Simmering: Taste the soup after it’s fully combined and let it sit for 2 minutes—flavors mellow. You’ll almost always need more salt (start with ½ tsp, then adjust). Knorr’s powder is salty, but the cream and milk dilute it, so don’t guess.
Creative variations of this dish
Creamy Potato Twist
Swap the chicken for 1 lb Yukon Gold potatoes, peeled and diced into ½-inch cubes. Sauté them with the shallots and garlic until golden, then proceed with the recipe as written. The potatoes will absorb the creamy broth beautifully, creating a rustic yet elegant texture.
For extra richness, stir in 2 tablespoons sour cream at the end—it adds a velvety finish that pairs perfectly with the earthy mushrooms. 🥔
Herb-Infused Velvety
Boost the herb profile by adding 1 tbsp fresh parsley and 1 tsp fresh rosemary (finely chopped) along with the thyme. The rosemary adds a piney depth that complements the umami of the Knorr base, while the parsley brightens the final dish.
For a garnish, top each serving with a sprig of fresh rosemary and a drizzle of truffle oil—just ½ tsp elevates the dish to gourmet status. 🌿
Spicy Kick
Transform this into a spicy soup by adding 1 tbsp hot sauce (like Cholula) or ½ tsp cayenne pepper to the base before pressure cooking. For a smoky twist, stir in 1 tbsp smoked paprika when sautéing the aromatics.
Serve with a dollop of Greek yogurt on top to cool the heat slightly. This variation is perfect for chilly evenings when you crave warmth with a little fire. 🌶️
Luxury Upgrade
Elevate the soup to restaurant-quality by stirring in 4 oz cream cheese (like Philadelphia) during the final simmer. The cream cheese adds a silky, tangy richness that balances the cream perfectly. For extra decadence, fold in ½ cup sautéed mushrooms (button or cremini) just before serving.
Garnish with crispy fried shallots for a crunchy contrast that takes the dish to new heights. 💫
Vegetarian Version
Skip the chicken entirely and add 1 cup cooked lentils (or ½ cup walnuts for crunch) to the soup for protein. Sauté 1 cup sliced mushrooms with the shallots and garlic to deepen the umami flavor.
For a dairy-free option, replace the heavy cream with 1 cup full-fat coconut milk—it adds a subtle sweetness that complements the mushrooms beautifully. 🌱
Bread Bowl Serving
Turn your soup into a cozy bread bowl experience by hollowing out a large sourdough loaf (about 1 lb) and toasting it lightly in the oven. Ladle the hot soup into the bread bowl and serve with extra crust for dipping.
For a fun twist, add crumbled blue cheese or grated Parmesan on top. This presentation makes the soup feel like a special occasion meal without extra effort. 🍞
Nutrition facts
Frequently asked questions
Can I make this soup without an Instant Pot?
Use a standard pot on the stovetop. After sautéing the aromatics and browning the chicken/potatoes, add the Knorr soup, cream, and milk. Simmer over low heat for 15-20 minutes, stirring occasionally, until thickened. The texture will be equally creamy—just monitor closely to prevent scorching.
Why did my soup turn out too thick?
This usually happens when the cream or milk reduces too much during cooking. To fix it, stir in 2-3 tablespoons warm milk while reheating, or blend in 1 tablespoon sour cream for instant creaminess. For future batches, reduce the cream to ¾ cup and milk to ¼ cup to start.
What’s the best way to store leftovers?
Store in an airtight container in the fridge for up to 5 days. The soup thickens when chilled—stir in a splash of milk when reheating. For freezing, portion into ramekins and freeze for up to 3 months. Thaw overnight in the fridge and whisk vigorously before reheating to restore smoothness.
Can I use powdered Knorr Cream of Mushroom Soup?
While possible, the canned version delivers deeper flavor and creamier texture. The powder lacks the pre-cooked base that gives this soup its rich umami. If you must use powder, dissolve it in 1 cup hot milk first, then proceed with the recipe—but expect a lighter result.
How do I make this soup dairy-free?
Replace the heavy cream with 1 cup full-fat coconut milk (adds subtle sweetness) and the milk with unsweetened almond milk. For extra richness, stir in 2 tablespoons nutritional yeast at the end. The texture will be slightly lighter but still velvety.