Pat the potato pieces dry with a paper towel to remove excess moisture.
Sprinkle salt over the potatoes according to taste.
In a bowl, toss the potato pieces with cornstarch until they are evenly coated.
Frying the Potatoes:

Heat sunflower oil in a frying pan or skillet over medium heat.
Once the oil is hot, carefully add the coated potato pieces into the pan.
Fry the potatoes until they turn golden brown and crispy on the outside. Use a slotted spoon to remove them from the oil and place them on a paper towel to drain excess oil.
Optional Sauce:
Prepare the Ingredients:

Mince or crush the garlic cloves.
In a saucepan, melt the butter over medium heat. Add the minced garlic and sauté until fragrant.
Add flour to the butter and garlic mixture, stirring continuously for about a minute.
Gradually pour in water and milk while stirring to avoid lumps.
Season the sauce with salt, paprika, and pepperoni according to taste.
Simmer and Thicken:

Allow the sauce to simmer gently until it thickens to your desired consistency, stirring occasionally.
Assembling (Optional):

Pour the prepared sauce over the crispy fried potatoes.
Top it off with slices of cheese and let the heat melt the cheese slightly.
Serve and Enjoy:

Plate the crispy potatoes and serve them hot.
Optionally, drizzle the prepared sauce over the potatoes with melted cheese.
Enjoy your simple and delicious potato dish! Bon appétit!