1. Line a slice tin with baking paper and spread the chocolate rice pop mixture evenly over the base. Pop in the freezer whilst prepping the filling.
2. In a small pot on the stove, melt together the caramel ingredients - the second measure of butter, brown sugar, vanilla and condensed milk. Bring to a simmer for about 5 minutes, , stirring regularly to prevent burning.
3. Pour over the base and return to the freezer for 30 minutes to set.
4. Whilst the caramel is setting, melt together the second measure of dark chocolate and peanut butter in a small pot on the stove.
5. Pour the melted chocolate over the caramel, then sprinkle with chopped peanuts. Return to the fridge to set, then cut into pieces and enjoy!