chocolate fudge

ingredients;
1 tin condensed milk
1/2 powdered sugar
3/4 cup cocoa
1 cup broken walnuts or Cashew nuts
125g butter
2 tbsp flour
method;
mix all the ingredients except walnuts in a pan.
and heat,once boiled cook on low fire for 10 to 15 minutes.
when the mixture becomes thick and starts separating from the pan, add
the walnuts and put on a buttered tray.when set cut into small pieces.