In a medium bowl, mix together 1/2 cup of brown sugar, butter, 1/2 cup of flour and oats until crumbly. Press into the bottom of a 20cm square pan. Bake for 15 minutes in the preheated oven.
In the same bowl, mix together the eggs, 1 cup of brown sugar, 1/2 cup flour, salt, baking powder and vanilla until well blended. Stir in the raisins, coconut and cherries, adding a little bit of the cherry juice to keep it from becoming stiff. Spread over the baked crust in the pan.
Bake for 30 minutes in the preheated oven, or until firm and lightly browned. Cool and cut into bars.