Wild Mushroom, Caramelized Onion & Kale Soup Recipe
Introduction
This Wild Mushroom, Caramelized Onion & Kale Soup is a comforting and earthy dish perfect for cooler days. It combines the deep flavors of caramelized onions and savory mushrooms with the fresh bite of kale, making a nourishing and delicious bowl.

Ingredients
- 2 cups mushrooms, sliced
- 2 large onions, thinly sliced
- 4 cups kale, chopped
- 4 cups vegetable broth
- 2 tablespoons olive oil
- Salt and pepper to taste
Instructions
- Step 1: Heat olive oil in a large pot over medium heat. Add the sliced onions and cook slowly, stirring occasionally, until they are golden brown and caramelized, about 20-25 minutes.
- Step 2: Add the sliced mushrooms to the pot and sauté for 5 minutes until they begin to soften.
- Step 3: Pour in the vegetable broth and bring the mixture to a simmer. Let it cook for 15 minutes to allow flavors to meld.
- Step 4: Stir in the chopped kale and cook for another 5 minutes until the kale is tender but still vibrant.
- Step 5: Season the soup with salt and pepper to taste, then serve warm.
Tips & Variations
- Use a mix of wild mushrooms like shiitake, cremini, and oyster for a richer flavor.
- Add a splash of white wine when sautéing mushrooms for extra depth.
- For a creamier soup, blend half of it before adding the kale.
- Fresh thyme or rosemary can be added for an herby note.
Storage
Store leftover soup in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stove over low heat, stirring occasionally. This soup can also be frozen for up to 2 months; thaw overnight in the fridge before reheating.
How to Serve
Serve this delicious recipe with your favorite sides.
FAQs
Can I use frozen mushrooms or kale?
Yes, frozen mushrooms and kale work fine. Just add them directly to the pot and adjust the cooking time slightly until everything is heated through.
Is this soup suitable for vegans?
Absolutely. This recipe uses only plant-based ingredients, making it a flavorful vegan option.
PrintWild Mushroom, Caramelized Onion & Kale Soup Recipe
A hearty and flavorful Wild Mushroom, Caramelized Onion & Kale Soup that combines earthy mushrooms, sweet caramelized onions, and nutrient-rich kale simmered in a savory vegetable broth. This comforting soup is perfect for a cozy meal and highlights simple, wholesome ingredients.
- Prep Time: 15 minutes
- Cook Time: 50 minutes
- Total Time: 1 hour 5 minutes
- Yield: 4 servings 1x
- Category: Soup
- Method: Stovetop
- Cuisine: American
- Diet: Vegan
Ingredients
Mushrooms
- 8 oz wild mushrooms, cleaned and sliced
Onions
- 2 large yellow onions, thinly sliced
- 2 tablespoons olive oil or butter
Kale
- 4 cups kale, stems removed and chopped
Broth & Seasonings
- 4 cups vegetable broth
- Salt, to taste
- Freshly ground black pepper, to taste
- Optional: 1 teaspoon fresh thyme or rosemary
Instructions
- Caramelize Onions: Heat olive oil or butter in a large pot over medium heat. Add the sliced onions and cook slowly, stirring occasionally, until they turn a deep golden brown and become sweetly caramelized, about 25-30 minutes.
- Add Mushrooms and Broth: Stir in the sliced wild mushrooms with the caramelized onions and cook for 5-7 minutes until the mushrooms are tender. Then pour in the vegetable broth, stirring to combine. Bring the soup to a gentle simmer.
- Simmer and Add Kale: Let the soup simmer uncovered for about 15 minutes to develop flavors. Add the chopped kale and simmer for an additional 5 minutes until the kale is wilted but still vibrant green. Season the soup with salt, pepper, and optional herbs to taste. Serve hot.
Notes
- Use a mix of wild mushrooms such as shiitake, cremini, and oyster for the best depth of flavor.
- For a richer taste, substitute some or all of the olive oil with butter when caramelizing the onions.
- You can blend part of the soup for a creamier texture while keeping some mushrooms whole for bite.
- Adjust the kale amount according to your preference; Swiss chard or spinach are good alternatives.
- This soup stores well and tastes even better the next day.
Keywords: wild mushroom soup, caramelized onion soup, kale soup, vegan soup, healthy soup, vegetable broth soup

