01 - Prepare noodles according to package directions until al dente. Drain thoroughly and set aside, reserving 1/4 cup of the cooking liquid.
02 - In a large skillet or wok, melt butter with olive oil over medium heat. Add minced garlic and stir continuously for 1–2 minutes until fragrant and lightly golden, taking care not to burn.
03 - Reduce heat to low. Pour in soy sauce, oyster sauce, brown sugar, and black pepper. Whisk until sugar dissolves and sauce is well combined.
04 - Add cooked noodles to the skillet. Toss vigorously with tongs or wooden spoon until evenly coated in sauce. Add reserved pasta water a tablespoon at a time if sauce appears too thick.
05 - Remove from heat immediately. Scatter with scallions, Parmesan cheese, and sesame seeds as desired. Plate while hot and serve.