In a large bowl full of water, soak the potatoes for 30 minutes. Use paper towels to pat dry them.
Heat the vegetable oil in a saucepan which is about 275 degrees Fahrenheit. You can also use deep-dryer if you have one.
Add the potatoes gently into the hot oil. Fry, flip and stir the potatoes. Use a slotted spoon to remove the potatoes and drain to cool.
Heat the oil again up to 350 degrees Fahrenheit now. Fry the potatoes for at least 5 minutes until they’re golden brown. Use a paper towel for blotting.
Sprinkle salt then serve along with the crab cakes.