Create the Smooth Base
Mash: Place the warm, boiled potatoes in a large bowl. Mash them thoroughly until completely smooth and free of any lumps.
Season: Stir in the salt and a portion of the cornstarch.
Knead the Dough
Incorporate: Gradually add the remaining cornstarch while kneading by hand.
Texture: Continue kneading until the dough reaches a soft, pliable, and non-sticky consistency (similar to modeling clay).
Shape and Boil
Form: Pinch off small pieces of dough and roll them into uniform, bite-sized balls between your palms.
Boil: Drop the balls into a pot of boiling salted water.
Timing: Cook for 4–5 minutes. Once the balls float to the surface, remove them with a slotted spoon.
Sauté the Aromatics
Melt: In a separate large skillet, melt the butter over medium heat.
Sizzle: Add the garlic and sauté until fragrant. Stir in the red pepper powder, soy sauce, and dried mint to create a vibrant, savory base.
The Final Toss
Glaze: Add the cooked potato balls to the skillet.
Coat: Toss gently for 2–3 minutes until every ball is thoroughly coated in the red garlicky butter and slightly seared. Serve immediately.