Start by bringing a pot of water to a boil.
Peel and wash your potatoes.
Medium dice your potatoes.
Cook the potatoes in boiling water for about 12-15 minutes, or until fully cooked.
Remove them from the pot and let them drain until all water is drained.
Then mash your potatoes by pushing them through a strainer.
Add the cornstarch, cheese, and a pinch of salt to the mashed potatoes and mix until well combined.
Place the mashed potatoes in a Ziplock bag and flatten the mashed potatoes with a rolling pin, and freeze for about 1 hour.
Carefully cut open the Ziplock bag to keep the mashed potatoes intact.
Cut your sticks by cutting them in half first, and then smaller sticks.
Heat a pan with at least 1 inch of oil and wait until it has reached 350 degrees Fahrenheit.
Once your oil is hot, fry your potato cheese sticks in batches for about 2-3 minutes. Make sure your pan is not too crowded.
Place them on a plate with kitchen towel, so it will absorb most oil.
Serve while hot with your favorite dip sauce.