Pour the light condensed milk into a food processor and add the vanilla bean paste and chopped banana. Whizz until smooth. Add either the strawberries or chocolate hazelnut spread and whizz again.
Divide the mixture between 4 paper cups, cover with foil, then push a lolly stick through the foil lid of each cup until you hit the base. Freeze for 4 hrs or until solid. Will keep in the freezer for 2 months.