To make Potato Spiral or Potato Twister at home, take 3 medium-sized potatoes. Properly wash and dry them.
Now, insert a long pointed bamboo stick or a skewer through the potato in the middle.
Take a sharp knife and keep it diagonally, cutting a continuous spiral around the potato. Make sure to rotate the potato as you cut and do not cut all the way through. For more, you can check the video.
Now, gently pull the potato spirals apart along the stick or skewer. 
Take water in a bowl and put the Potato Spiral in the water to prevent it from getting dark. Put it aside.
Take a mixing bowl, add 1/2 cup Maida, 1/2 cup Cornflour, 1 tsp crushed Black pepper, salt to taste, 1 tsp Dhaniya powder, 2 tsp Kashmiri red chilli powder, and 1 tsp Aamchur Powder. Mix well.
Add water gradually to prepare a slightly thick and runny batter.
Coat the Potato Spirals with the batter.
Heat oil in a Kadai on medium heat. Deep fry the Spirals on low to medium heat until they turn crispy and golden brown.
Season with Peri Peri masala, mayonnaise, and a mix of tomato ketchup with Mayonnaise, which tastes delicious and makes the snack so flavorful.
Serve it, enjoy.