Some of the coldest July days in years, so we’ve come up with these quick and easy soup ideas Harissa Red Lentil Soup Serves 2 1 onion, finely sliced 1 cup red lentils 3 cups chicken stock 1 potato, peeled and chopped 2 tsp Harissa spice mix 1 Tbs coriander leaves, picked Saute onion and potato in a little oil in a medium-sized saucepan. When