Mushroom and leek soup is a delicious and comforting dish that is perfect for a cozy meal. It combines sautéed mushrooms, leeks, onions, garlic, and thyme in a flavorful broth. The soup is pureed until smooth and finished with a swirl of cream for added richness. Serve this soup with a sprinkle of fresh chives and a side of crusty bread for a satisfying meal.