Prepare the braising liquid by whisking together soy sauce, mirin, honey, minced garlic, black pepper, water, and sesame oil in a small bowl.

Boil water in a large pot, adding a splash of white vinegar. Add washed baby potatoes and cover. Boil for 12–15 minutes until fork-tender. Drain and cool slightly.

Heat vegetable oil in a skillet over medium heat. Fry boiled potatoes for about 4 minutes until golden brown and slightly crispy.

Pour the braising liquid into the skillet with the fried potatoes. Simmer for 5–6 minutes, stirring until the sauce thickens and coats the potatoes.

Remove from heat and stir in toasted sesame seeds and chopped green onions. Serve warm or at room temperature.