Mystery Soup might be just the soup you are searching for. This gluten free, primal, and vegetarian recipe serves 8. One serving contains 71 calories, 1g of protein, and 7g of fat. Autumn will be even more special with this recipe. If you have onion, salt and pepper, creme fraiche, and a few other ingredients on hand, you can make it. From preparation to the plate, this recipe takes around 45 minutes.