Preheat oven to 350 degrees F.
In a medium saucepan, mix together water, brown sugar, raisins, butter, and cocoa. Bring to a boil, and let simmer for 5 minutes. Remove from heat, and let cool.
In a separate bowl, mix together, flour, baking powder, baking soda, salt, cinnamon, nutmeg, allspice and ground cloves.
Add wet ingredients to the dry ingredients, and stir until completely incorporated.
Pour into a 13x9 inch glass dish or cake pan that has been generously sprayed with non-stick cooking spray.
Bake for 35 minutes of until a toothpick comes out clean from the center of the cake.
While cooling, prepare the Brown Sugar Frosting.