Rub the butter into the flour.

Add the sugar, cinnamon, dried fruit, and ginger to the flour and butter mixture.

Gradually add the milk to create a soft dough.

In a separate small bowl, quickly mix the vinegar and bicarbonate of soda.

Pour the vinegar mixture into the cake batter and mix thoroughly.

Cover the bowl and leave it in the refrigerator overnight.

The next day, preheat your oven to a moderate temperature (approximately 350°F or 175°C).

Grease and line a baking tin.

Pour the cake batter into the prepared tin.

Bake for 60-90 minutes, or until a skewer inserted into the center comes out clean.