onion soup mix until well combined. The mixture will be thick and very flavorful.
Pour the onion soup mixture evenly over the frozen fries, using a spatula to spread it so most of the fries are lightly coated. It doesn’t have to be perfect—everything will melt together as it cooks.
Sprinkle 3/4 cup of the shredded cheddar cheese evenly over the top of the fries and soup mixture, reserving the remaining 1/4 cup for later.
Cover the slow cooker with the lid and cook on HIGH for 2 to 3 hours, or on LOW for 4 to 5 hours, until the fries are tender when pierced with a fork and the edges are starting to get a little golden and crispy around the sides.
Once the fries are cooked and the mixture is bubbling around
