Yes, I believe that it's true: the way to a man's heart is through the stomach. You can't blame us. We love to eat, eat and eat while we drink, drink and drink. That's why if you fancy a guy and you don't know what to do. I suggest that you ask your mom for her secret recipes and cook up a delicious meal for your crush.
So what works? Anything as long as it's food. But as an advice, whether he's your colleague or classmate or neighbor, a container of baked goodies will always work wonders. Men love to eat sweets (well, unless he's a diabetic), and giving him something you made will always win him in the end. Go ahead and try it.