Cut a slit in each date and remove the pit. In place of the pit press in one or two peanuts.
Melt the chocolate and coconut oil in a heatproof bowl over a pan containing a little water (bain-marie) or directly in a small saucepan on a very low heat. When melting it directly you have to be very careful it doesn’t burn.
Once the chocolate has melted, carefully take the stuffed date and drop it (cut side up) into the melted chocolate and roll gently to coat the date. Remove with a spoon and set on a plate. Wait until the chocolate has hardened.