Very few of our taste preferences are biologically preset. Much rather they are linked with some sort of experience. Although there are some genetic factors that cause differences in taste perception, similarities in taste preferences much more commonly reflect similar experiences with types of flavours and foods. The shaping of taste preferences begins in the womb and continues throughout the rest of our lives.
Thus research suggests that the world is so ordered that you don't just think your mother's cooking is the best in the world, your taste develops in such a way that, for you, it actually is. That is marvellous I think