- Place the sugar, condensed milk, butter, a pinch of salt and vanilla in a large microwavable bowl, and stir to combine.
- Microwave on high for 10 minutes, stirring every 2 minutes until a soft ball stage (place a bit of fudge in cold water, if you can form a ball between your fingers, then the fudge is ready).
- Remove the fudge from the microwave and whisk with an electric mixer for 5 minutes on the fast setting.
- Pour it into a greased and lined baking tin, sprinkle your Crunchies evenly, and allow the fudge to set in the fridge (about 2 hours).
- Cut into squares and enjoy!
