AHocol Chocolate cake in made is bitter and dense. How to rectify it? I think I added too much cocoa
"Bitter"? Probably not enough sugar for the cooca.
"Dense"? That one's much harder. Did you overmix? Did you use too much leavening? Not enough eggs? Too much liquid? Did you sift your flour?
It would help if you posted the recipe you used and any changes you made.
AIs hocol the name of the cake recipe or brand of chocolate?