Ingredients: 500 ml whole milk, 20 grams cornflour, 15 grams cocoa powder, 1/2 tablespoon instant coffee, 35 grams sugar,

Bring 375 ml milk to the boil. Meanwhile, combine 125 ml milk with 20 grams cornflour and 15 grams cocoa powder to a paste. Add the cornflour paste to the boiling milk. Continue stirring for 2 minutes. Add 1/2 tablespoon instant coffee (more or less to taste) and 35 grams sugar. Stir until the coffee and sugar are dissolved. Put the coffee chocolate custard in a jar, let it cool down first. Stir frequently. When the coffee chocolate custard is cooled down, further cooling in the refrigerator so it is really cold. Enjoy!