Prepare your rocky road fillings by breaking them up into smaller pieces and placing them into a bowl.
Line a container or tray with baking paper, this will make it much easier to remove from the tray once the chocolate has set.
Break up the chocolate into a large heat safe bowl such a PYREX bowl and add the oil.
Fill a medium sized pot 1/3 of the way with water, place on a high heat and bring it to a boil. Place the bowl on to the pot so that the bottom of the bowl sits in the pot. The heat will gradually melt the chocolate, ensure to mix regularly. Once the chocolate is fully melted, remove the bowl and allow to cool for a few minutes. You can melt chocolate in the microwave: Note 2
Add in your favourite types of fillings and mix everything to combine.
Pour the mixture into a container or tray and refrigerate for at least 3 hours or until everything is cool and the chocolate is solid/set.
Remove the rocky road from the fridge 20 minutes before slicing, and use a sharp knife to cut it into smaller pieces. Note 3