01 -
Lightly grease an 20 cm square baking dish to prevent sticking.
02 -
In a medium saucepan over low heat, mix granulated sugar, cocoa powder, whole milk, and unsalted butter, stirring until the mixture is smooth.
03 -
Increase heat and maintain a rolling boil while stirring constantly for approximately 5 minutes until the mixture reaches the soft ball stage at 113°C.
04 -
Remove the saucepan from heat and promptly stir in the vanilla extract.
05 -
Allow the mixture to cool for 10 minutes, then vigorously beat for about 5 minutes until thickened and creamy.
06 -
Pour the mixture into the prepared dish, spread evenly, and let it set at room temperature for approximately 2 hours before cutting into squares.