01 -  Bring a large pot of water to a boil. Divide boiling water into multiple heatproof bowls based on desired number of noodle colors. 
 02 -  Add a small amount of gel-based food coloring to each bowl. Stir thoroughly to achieve vibrant shades for each color. 
 03 -  Split dried noodles into equal portions and cook each batch separately in the colored boiling water for 2–3 minutes less than package directions. Rinse cooked noodles under cold water and set aside. 
 04 -  Melt unsalted butter in a saucepan over medium heat. Add cream cheese and stir continuously until the mixture is smooth. 
 05 -  Whisk in milk, grated parmesan, cornstarch, salt, and white pepper. Continue cooking and stirring until the sauce thickens and becomes creamy, approximately 5 minutes. 
 06 -  Gently fold colored noodles into the sauce, preserving color separation for a cloud-like effect, or swirl together for a marbled presentation. 
 07 -  Portion noodles onto serving plates. Finish with sliced scallions, toasted sesame seeds, and optional edible flowers or microgreens.