Cook the noodles in a large pot of boiling water according to package instructions until al dente.
While the noodles cook, whisk together the Gochujang, soy sauce, sesame oil, honey, rice vinegar, minced garlic, and grated ginger in a large mixing bowl until smooth.
Drain the noodles, reserving approximately 30ml of the starchy cooking water.
Transfer the hot noodles and the reserved cooking water to the bowl with the gochujang mixture.
Toss the noodles vigorously with the sauce until every strand is evenly coated and the sauce reaches a glossy consistency.
Divide into bowls and garnish with sliced green onions and toasted sesame seeds.