In a large bowl, combine the cabbage and scallions.
In a medium bowl, whisk together mirin, vinegar, sugar, sea salt, and white pepper.
In a small bowl, add the oils, and whisk until combined.
Slowly add the oil mix to the mirin mix, whisking steadily, until all the oil is added and the dressing has emulsified.
Add vinaigrette to the bowl of cabbage and scallions, top with sesame seeds, slivered almonds, and ramen noodles.
Toss to combine and serve immediately.