CakePre Heat Oven. Grease and flour Tin. Chop potato 5 sec/sp 7. Scrape down sides and add water. Cook 3min/varoma/sp 1.Blend 10 sec/sp 7, scrape sides, blend again 10 sec/sp 7.Add chocolate, butter and sugar and cook 6 min/90 deg/sp 1.Add flour, eggs, vanilla and baking powder then mix 10 sec/sp 4.Pour into prepared cake tin and cook 45 min at 175 degrees until skewer comes out clean.Caramel SauceOn the stove melt butter lo to med heat. just before butter is melted add sugar. stir 3-5 mins. When sugar becomes more liquid than wet sand add cream. Whisk then turn up to medium heat, whisk every few mints (10 mins in total). When cool add vanilla and salt.Pour over each piece of cake