1x ready baked 10in tart case. 1x 14oz tin evap. milk, 12oz. muscovado sugar (no other sugar will work!). Pre-heat oven 200C, 400F, Gas 6. Whisk milk and sugar together for a minimum of 15 mins. Should be coffee coloured and like whipped cream. Pour into pastycase and bake for 10 mins. Leave to cool before slicing. Serve with pouring cream if you want. Chill evap. milk for at least an hour before whisking as this will guarantee you get a whisking consistency. Use an electric beater at max. speed. Enjoy!