Chocolate and Zucchini cake. Photo: Christina Simons INGREDIENTS 180g dark chocolate 200g plain flour 125g caster sugar 1tsp baking powder 1/2tsp bicarbonate soda 1/2tsp salt 2 large eggs, beaten 6fl oz veg oil 225g peeled courgettes 60g chopped walnuts We start to get creative as our zucchini plant