For the chocolate caramel spread, melt the sugar in a pan and stir until lightly browned (caramelized). Add the whipped cream and stir vigorously until it forms a uniform caramel liquid.
Now let this simmer for about 40 minutes over very low heat, stirring frequently, until this has a thick consistency. Chop the chocolate and gradually add to the caramel cream in small amounts. Keep stirring as you do this.
Allow the finished chocolate caramel sauce to cool and pour into a screw-top jar.