Morticia, when I wanted to use US recipes, I bought a set of measuring cups - because the proportions are by volume, if all the amounts are in cups, it doesn't matter what size the cups are - except with recipes designed to fit a particular size of baking tin or other container! Having a set of cups does make it easier to get the halves and thirds.

I also have a Canadian cookbook somewhere with maple syrup recipes in, which I will look out, and post in quanta.

Penny