Wash and peel the potatoes. Put the potatoes in a pot and pour water till it is submerged. Bring it to a boil on a medium flame and boil for 5 minutes. Drain the water and pour cold water to stop further cooking. When it is cool enough to handle, grate it. Transfer to a bowl, add a tbsp of rice flour, salt, pepper, and chili flakes. Mix together.
Preheat the oven to 400 degrees C. Smear a little oil in your palm. Take about 1 tsp of the potato mixture and roll into a cylinder, just how tater tots looks like. Smear oil again if the potato mixture is sticking on your hand. Arrange the tots on a baking sheet. Brush with oil on both the sides.
Bake for 45 minutes turning once in between till golden brown. Transfer to a bowl.
Serve with ketchup or ranch