Preheat the oven to 350 ° F . Clean the sweet potatoes with a brush. Cut in half and put in a baking sheet covered with baking paper. Cook for about 30 minutes. Sweet potatoes should be tender when you prick them with a fork.
Meanwhile, rinse and drain the chickpeas and pour into a bowl with all the spices, cherry tomatoes, black olives and parsley. Mix well
In an electric mixer, add all the ingredients of the vinaigrette and mix until a homogeneous sauce is obtained.
Take the sweet potatoes out of the oven, crush the skin a little with a fork. Add salt and pepper. Place the chickpea mixture on top and add the vinaigrette.
Serve