This is a really easy recipe for kids to make that doesn't require any baking or boiling.
1 heaping tbsp. smooth peanut butter (crunchy peanut butter can be used if a more crunchy texture is preferred)
1 heaping tbsp. golden syrup
1 heaping tsp. soft margarine or butter
2 heaping tbsp. brown sugar
2 heaping tbsp. caster sugar
Mix the butter and the golden syrup together in a bowl, then add the peanut butter and mix it in.
Add the brown sugar and the caster sugar to the mixture and mix until thick enough to form balls. (If the mixture is still too sticky to form balls, you can add a tiny bit of plain flour to thicken it up, but usually this will not be necessary.)
Form the mixture into ten separate balls and roll each one in the cocoa powder until fully coated.
Place the cocoa-dusted peanutty balls on a plate and refrigerate for an hour.