Hazelnut and mallow fudge

1. In a heat-resistant bowl, combine sugar and evaporated milk and microwave on 100 percent power until boiling, about 5 minutes. Remove from the microwave and stir until sugar is dissolved.
2. Microwave on 100 percent power for a further 5 minutes, stirring frequently, until mixture is thick and turns a light caramel colour. Be careful that the mixture doesn’t boil over, as it boils quite rapidly.
3. Remove from the microwave and add the chocolate and marshmallows. Stir to combine. Microwave on 100 percent power for 3 minutes, stirring twice.
4. Stir in the hazelnuts and beat with a wooden spoon for 1 minute.
5. Spoon mixture into a greased baking tin and press out evenly with a spoon. Leave to set for about 30 minutes before cutting into bars or squares.