Most Versatile Mushroom & Thyme Soup

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A deeply savory, creamy soup that's the most versatile base for your favorite seasonal vegetables. This french-inspired soups ready in about 55 minutes pairs medium, finely diced onion, medium, finely diced carrot, finely diced celery stalk for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 310 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

★ 3.9 (14 ratings) Prep: 20 min Cook: 35 min Serves 4 French cuisine 310 cal/serving
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Ingredients

Instructions

  1. Step 1: Melt 2 tbsp butter in a large pot over medium heat. Add onion, carrot, celery, and 1/2 tsp salt, cooking for 8 minutes until vegetables are softened and translucent.
  2. Step 2: Stir in sliced mushrooms and minced garlic, cooking for 5 minutes until mushrooms release their liquid and begin to brown slightly.
  3. Step 3: Sprinkle 3 tbsp flour over vegetables and stir constantly for 1 minute to cook off raw flour taste, then slowly pour in 4 cups chicken stock while whisking continuously.
  4. Step 4: Add thyme sprigs, bring to a gentle simmer, and cook for 15 minutes to allow flavors to meld. Remove thyme sprigs and discard.
  5. Step 5: Stir in 1/2 cup heavy cream and simmer for 2 more minutes until heated through but not boiling. Season with additional salt and pepper to taste. Serve hot with crusty bread.

Equipment for this recipe

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Frequently asked questions

How long does Most Versatile Mushroom & Thyme Soup take to make?

Total time is about 55 minutes (20 min prep + 35 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Most Versatile Mushroom & Thyme Soup?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep medium, finely diced onion from drying out.

Can I substitute ingredients in Most Versatile Mushroom & Thyme Soup?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Most Versatile Mushroom & Thyme Soup for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Most Versatile Mushroom & Thyme Soup?

French soups like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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