Ingredients

• 300ml full-fat milk
• 350g brown sugar
• 100g butter
• a candy/deep-fry thermometer
  

Method

1. Prep a tray (18cm) with with baking paper
2. Add all ingredients into a heavy based saucepan (at least 2x the volume of the ingredients)
3. Heat slowly, always stirring until combined
4. Bring the heat up just until it starts to bubble, around 90 celsius
5. Stop stirring, insert the thermometer
   
6. Let it gently bubble until it reaches 115 celsius, this should take about 15-20 minutes - do not stir
7. Take off the heat, pour into a bowl or whatever for it cool for until ~45 celsius, no sooner
8. Using a (strong/wooden) spoon whip the mixture until it thickens and the gloss disappears. If it starts to crumb, you've gone too far
9. Pour into the tray, leave to cool a few hours before cutting into squares
   
10. Store in the fridge or wherever, I don't care, enjoy!