Bring a large pot of water to boil over high heat and salt it generously. Add the noodles, stir, and cook until al dente, about 2 minutes. Drain and rinse with cold water, shaking well to remove excess moisture, and transfer to a serving bowl.
Whisk together the sesame oil, garlic and salt and white pepper, to taste, until combined. Pour the mixture over the noodles and toss well to coat. Taste and adjust the seasoning with more salt and white pepper, if necessary. Serve immediately.