Cook the noodles according to package instructions in a large pot of boiling salted water until al dente. Drain and set aside, retaining a cup of pasta water.
In a large skillet, heat 2 tablespoons of sesame oil over medium heat. Add the minced garlic and grated ginger, sautéing for about 1-2 minutes until fragrant but not browned.
Stir in the soy sauce, rice vinegar, chili paste, and honey or maple syrup. Mix well until combined and simmer for about 2 minutes to let the flavors meld.
Add the cooked noodles to the skillet and toss to coat them in the spicy garlic sauce. If the mixture seems dry, gradually add reserved pasta water until it reaches your desired consistency.
Remove from heat and stir in the remaining sesame oil, toasted sesame seeds, and sliced green onions. Season with salt and pepper to taste.
Divide the spicy garlic sesame noodles into bowls and garnish with fresh cilantro if desired.
Notes
Adjust the chili paste according to your heat preference.