Frozen, store-bought french fries are beyond convenient, but you can easily make your own. Not only are homemade freezer fries cheaper than their grocery store counterparts, but you know exactly what's going into them, and they taste a little better.
Photo by Jill Shih.
Click the link below to get the full instructions from The Kitchn, but all you'll need is potatoes, vegetable oil, and a pot of salty water. Cut the potatoes into french fry shapes (I'm confident you know what this looks like), boil 'em for a couple of minutes, then transfer to an ice bath to stop the cooking process. Drain them, dry them off, toss with oil, and freeze in a single layer on a parchment-lined baking sheet overnight. Once they're completely frozen, transfer to a plastic bag, and pop the whole thing in the freezer until you're ready to chow down. (These frozen fries can be stored up to six months, but I doubt they will last that long.)
How To Freeze Your Own French Fries [The Kitchn]