Pacific Northwest Rainy Day Mushroom & Leek Soup

By AislePrompt Editorial · Published 2026-04-05 · Updated 2026-04-05

A comforting, earthy soup featuring locally foraged mushrooms and leeks, perfect for drizzly Redmond afternoons. This Pacific Northwest-inspired soup recipe, ready in about 55 minutes, pairs cremini mushrooms, leeks, onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 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.

Ingredients

• 8 oz cremini mushrooms
• 2 medium leeks
• 1 medium onion
• 3 cloves garlic
• 4 cups chicken stock
• 1/2 cup heavy cream
• 2 tsp chopped fresh thyme
• 3 tbsp all-purpose flour
• 2 tbsp unsalted butter
• 1 tbsp olive oil
• 1/2 tsp salt
• 1/4 tsp black pepper

The stock pot we’d simmer this in → Best Stock Pots for 2026: Top Picks + Buying Guide

Instructions

1. Step 1: Trim leeks, slice into 1/4-inch rings, and rinse thoroughly under cold water to remove grit; dice onion into 1/4-inch cubes and mince garlic cloves.
2. Step 2: Melt 1 tbsp butter and 1 tbsp olive oil in a large pot over medium heat; add leeks, onion, and 1/4 tsp salt, cooking for 8 minutes until softened and translucent, stirring occasionally.
3. Step 3: Add mushrooms, thyme, and remaining 1/4 tsp salt, cooking for 6 minutes until mushrooms release liquid and begin to brown slightly.
4. Step 4: Whisk in 3 tbsp flour until no lumps remain, then gradually pour in 2 cups chicken stock while whisking constantly until smooth.
5. Step 5: Bring to a gentle simmer, add remaining 2 cups chicken stock, and cook uncovered for 15 minutes until flavors meld and soup thickens slightly.
6. Step 6: Stir in heavy cream and simmer for 3 more minutes until heated through but not boiling; season with black pepper to taste.