Sweet Potato Gnocchi Recipe / 500g of sweet potato, 90g of strong bread flour, 2 egg yolks, 2 tsp dill, chopped, 2 tsp tarragon, finely chopped, 2 tsp chives, chopped, 30g of unsalted butter, 1 pinch of salt, 1 pinch of black pepper, iced water, to cool the gnocchi, 200ml of passata, 50g of parmesan, grated, 50g of rocket.