Low fat/cal Chocolate Treat

With winter soon approaching, the days getting darker and the weather getting worse it's tempting to sit in bed with a box of chocolates. I find that when I'm craving chocolate during winter a hot chocolate (made with water) makes up for it. Especially, since there are so many great flavours now such as fudge or caramel. So before reaching for the chocolate bar boil the kettle and have a zero fat, low calorie cup of chocolate.