i use to make this yrs ago. i had a simple recipe. if i remember right..
1 lb flour, 1 tsp salt, 1tbsp sugar, about 1/2 pint of sour or butter milk(might need more), 1tsp bicard of soda. mix it in to a smooth dough, shape it into a round shape, cut a cross into it, put in hot oven , gas mark 6 for 35 mins. hey presto.
dont expect it to be great 1st time, usually trial and error.