The combination of ice cream, popcorn and caramel may seem a little strange at first but let me assure you, it is a wonderful combination indeed. The slightly salty, crunchy popcorn adds a totally new dimension to the sweet, creamy vanilla ice cream. Smother this in rich, salted caramel sauce and you have yourself a Caramel Popcorn Ice Cream Sundae to die for! As with many things in life, homemade is so much better than shop-bought. This is definitely true of caramel popcorn.  I find the shop-bought variety sickly sweet with only a mild caramelised flavour in comparison to this recipe. Not...