When he was growing up in the 1960s, vegetable oil was still a precious commodity and used sparingly.
Fast-forward to today and oil is now so abundant and cheaply available that most of us use it liberally in our cooking - chucking it in anything from salad dressings to deep fat frying.
It's not only in our home cooking, oil is also an ingredient in most of the items we buy from the supermarket.
