5 tsp instant strong coffee powder
2 tsp cornflour (cornstarch)
1 x 175g/6oz can evaporated milk
2 tbsp soft light brown sugar
1 Mix the coffee powder and cornflour to a smooth paste with a little water, then make up to 150ml/¼ pint/scant ⅔ cup with more water.
2 Pour into a pan, add the evaporated milk and sugar and slowly bring to the boil, stirring. Simmer for 1 minute.