Preheat oven 160 degrees C (fan forced oven). Grease and line a square tin with either greaseproof paper or baking paper.
In a saucepan combine fruit, water, sugar, butter, mixed spice and bicarb soda. Stir over a low heat until the butter and sugar dissolves. Boil for 1 minute.
Letting it cool, add the lightly beaten eggs and combined flours to the fruit then mix well. Add chopped nuts and 1 tablespoon alcohol.
Pour mixture into prepared tin and place extra nuts on top of the cake. Cook in a slow oven for 1 3/4 hours or until skewer comes out clean when tested (this will depend on how fast your oven cooks).
Let stand for 15 minutes in tin and then turn out onto a wire rack.
Tip
You can also use tinned crushed pineapple (450g) and delete the water. The cake can be iced if required .