Peel the potatoes and cut into ½ cm slices. Place in a pan of cold water and simmer until just cooked. Drain well. Melt the butter in a pan and add the flour and mix to a smooth paste. Add the ...
Serve three tablespoons of ragù to ... Cook on a low heat and toss together until the sauce clings to the pasta. Serve with grated Parmesan cheese and freshly ground black pepper.