When I was first teaching myself to cook I tried to impress a boy by making some kind of chicken/mushroom fricassee. The very fresh mushrooms leaked all of their gill colour into the cream sauce and turned the dish into the exact colour of concrete. The massive chunks of chicken breast failed to pick up any flavour from the sauce, and to top it all off were half raw on the inside. I freaked out and threw the whole thing in the garbage and we got in a HUGE fight solely because I was so embarrassed. (This took place in Florence, Italy, so I had a lot to live up to...)
What were the cooking disasters that haunt you still?