I would really quite like to make a choccie cake for DC 2's 1st birthday that is not like my effort for DC 1 - like a chuffing rock . Does margarine make a cake lighter? If so, which should I get? We only ever have butter as no one likes the taste of marge. I think my oven might be a bit crap too so will cook it in a friend's Any failsafe, simple recipes for the never-bakes really appreciated!!