Heat the oven to 180 degrees Celsius. Melt 25 grams of butter, and brush it into the holes of the mini bundt cake tins. Sprinkle a little flour into the holes as well, and shake to coat.

Mix together the butter, caster sugar and a pinch of salt with an electric whisk. Beat in the eggs one at a time. Combine the flour and baking powder in a separate bowl, then sift it into the sugar mixture, stirring until smooth. In another small bowl, combine the cocoa powder and milk.

Scoop one tablespoon of…