Chocolate & Blackberry Tray Cake

2 bananas
2 dl sugar
1,5-2 dl blackberries
100-150 g chocolate,chopped
4-4,5 dl flour
2 tsp baking powder
1 tbsp cinnamon
1 dl melted butter
1 egg
juice of half lemon
1 lemon,grated rind
1 orange,grated rind

Mash the bananas & whisk with sugar,lemon juice & rind of lemon & orange.
Mix together the flour,baking powder,cinnamon & chopped chocolate.
Add the banana mix,egg & melted butter.
Gently mix in the blackberries & zest of lemon & orange.
Butter the 25x35cm baking tray.Line with baking paper.
Preheat the oven 200C.
Bake the cake ca 50 min,or until its ready..
Cool.
Can be covered with icing:
170 g soft cheese
1 dl icing sugar
2 tbsp lemon juice