Seattle Rainy Day Mushroom & Thyme Soup

By AislePrompt Editorial · Published 2026-04-06 · Updated 2026-04-06

How this recipe was made — this recipe was drafted by AislePrompt's AI-assisted pipeline from technique templates and USDA-sourced nutrition data, and published by AislePrompt Editorial — see how AislePrompt recipes are drafted and published.

A comforting, earthy soup simmered with wild mushrooms and fresh thyme, perfect for cool, drizzly Seattle afternoons. This American-inspired soup recipe, ready in about 40 minutes, pairs mixed wild mushrooms, unsalted butter, yellow onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 280 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.

Prep: 15 min Cook: 25 min Serves 4 American cuisine 280 cal/serving

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Ingredients

1.5 cups mixed wild mushrooms
2 tbsp unsalted butter
1/2 cup finely diced yellow onion
3 cloves minced garlic
4 cups vegetable broth
2 tbsp fresh thyme leaves
1/2 cup heavy cream
2 tbsp all-purpose flour
1/2 tsp salt
1/4 tsp black pepper

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Instructions

Step 1: Heat 1 tbsp butter in a large pot over medium heat until shimmering. Add mushrooms and cook for 8 minutes until golden brown and liquid evaporates, stirring occasionally.
Step 2: Add remaining 1 tbsp butter, diced onion, and minced garlic. Sauté for 5 minutes until onion is translucent and fragrant, stirring to prevent burning.
Step 3: Whisk in flour until fully incorporated, cooking for 1 minute to remove raw flour taste. Gradually pour in vegetable broth while whisking constantly to prevent lumps.
Step 4: Bring to a gentle simmer, then reduce heat to low. Stir in thyme, salt, and pepper. Simmer uncovered for 15 minutes to meld flavors.
Step 5: Remove from heat. Stir in heavy cream and simmer for 2 more minutes until slightly thickened and heated through. Do not boil after adding cream.