Method
Place all the ingredients in a stainless steel saucepan. Heat very gently over a really low heat until the chocolate has melted and the mixture is hot, taking care not to let it boil.
Carefully pour or spoon into a sterilized, wide necked glass jar, seal and leave in a cool place for 2 months.
Strain, then pour through a sterilized funnel into a sterilized bottle and seal.
Always shake the bottle before pouring, as the chocolate tends to settle on the bottom over time.
Alternatively take 600ml of sloe vodka that you made earlier and simply melt 200g of chocolate into it over a low heat.