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Wild Mushroom, Caramelized Onion, and Kale Soup Recipe

4.9 from 59 reviews

This Wild Mushroom, Caramelized Onion and Kale Soup is a hearty, nourishing blend of earthy mushrooms, sweet caramelized onions, and nutrient-rich kale, finished with creamy coconut milk for a velvety texture. Perfect as a warming meal, it balances robust umami flavors with subtle sweetness and freshness in a gluten-free and versatile recipe.

Ingredients

Scale

Soup Base

  • 2 tbsp extra-virgin olive oil
  • 1 large sweet onion, sliced 1/2 inch thick
  • 4 cloves garlic, finely chopped
  • 1 tsp sea salt or pink salt
  • 1/2 tsp freshly cracked black pepper
  • 2 cups whole shiitake mushrooms
  • 2 cups baby bella or cremini mushrooms, sliced
  • 4 cups organic chicken broth or vegetable broth, gluten-free
  • 2 cups loosely chopped kale leaves

For Finishing

  • 1/2 cup coconut milk or coconut cream

Instructions

  1. Caramelize the onions: Heat the extra-virgin olive oil in a large pot over medium heat. Add the sliced sweet onion and sauté, stirring occasionally, until the onions are golden brown and caramelized, about 10-15 minutes. This step brings out the natural sweetness of the onions.
  2. Sauté garlic and season: Stir in the finely chopped garlic, sea salt or pink salt, and freshly cracked black pepper. Continue to cook for 1-2 minutes until the garlic becomes fragrant, being careful not to let it burn.
  3. Cook mushrooms: Add the whole shiitake mushrooms and the sliced baby bella or cremini mushrooms to the pot with the sautéed onions, garlic, and seasonings. Cook for about 5-7 minutes, stirring occasionally, until the mushrooms are softened and start to turn golden brown for added flavor.
  4. Add broth and kale, then simmer: Pour in the chicken or vegetable broth, stirring to combine. Bring the mixture to a boil, then add loosely chopped kale leaves. Reduce heat to low, cover the pot, and let the soup simmer for 20 minutes so the flavors meld and kale becomes tender.
  5. Finish with coconut milk: Uncover the pot and stir in the coconut milk or coconut cream. Let the soup heat through for 1-2 minutes. Taste and adjust seasoning with salt and pepper as needed before serving. Use coconut cream for a richer soup if preferred.

Notes

  • For a vegan option, use vegetable broth and coconut milk or cream.
  • Coconut cream creates a richer, creamier soup compared to coconut milk.
  • Be careful not to burn the garlic during sautéing as it turns bitter quickly.
  • You can substitute kale with spinach or Swiss chard if desired.
  • This soup can be stored in the refrigerator for up to 4 days and reheated gently on the stovetop.

Keywords: wild mushroom soup, caramelized onion soup, kale soup, healthy soup, gluten free soup, coconut milk soup, vegetarian soup, mushroom kale soup