DS's 7th birthday is coming up and I need to bake him a cake....but I'm fairly crap at cake making! My one foolproof recipe (Rachel Allen's chocolate cake recipe) has been turned down by DS as being too rich 
I tried a plain Victoria sponge one year but it came out like two pancakes. 
I need a really, really easy cake recipe please! DS is not too fussy re decorations or anything (I'm getting him a shop bought Minion cake for his party, just need another cake for the family tea)