Chop 5 of the carrots into 1 inch pieces and add to a saucepan with the onion and potato. Carrot Soup. Green/Vegetarian – syn free per serving (use vegetable stock). Ingredients. Follow. It has a creamy, broccoli courgette-y taste, and goes amazing with crusty bread. Our website searches for recipes from food blogs, this time we are presenting the result of searching for the phrase carrot and courgette soup slimming world. I’ve made it loads of times because it is so simple, quick and healthy. Serves 4. Cover with the boiling water, add in the stock pot and simmer for 10 minutes. Culinary website archive already contains 1 130 410 recipes and it is still growing. This recipe for courgette soup is actually a slimming world recipe (I believe it is one healthy extra point for a serving) I stole from my step mum because it tastes SO DAMN GOOD! Extra Easy – syn free per serving. 1 large sweet onion, finely chopped; 2 large carrots, sliced; 720ml of chicken stock Original – syn free per serving. Instructions. thecrazykitchen.co.uk.