French fries, the staple reward for well-behaved kids and go-to comfort food for overworked grown-ups, may soon become more of a luxury treat. While the US grows most of its own potatoes — about 44 billion pounds each year — there’s another french fry ingredient that we largely don’t produce on American soil, cooking oil. To achieve crispy fry perfection, most American chefs prefer canola or soybean oil. And much of our canola oil comes from Canada, which is being threatened by President Donald Trump’s tariffs. The US Canola Association says 69% of the canola oil we use in America is imported — of that, some 96% comes from Canada. We also import about $1.7 billion worth of frozen french fries — like the ones served by most fast-food restaurants — from Canada. For the past five years, the US has imported more frozen fries than it has produced. All this has been free of tariffs, thanks to the USMCA and the North American Free Trade Agreement before it. Read more about how restaurants ...