Bring 2 quarts of water to a boil.
Add the ramen noodles and cook for about 3 minutes. Stir gently to separate them.
Drain the noodles and rinse with cold water to stop the cooking. Drain well and set aside.
Heat a large skillet over medium heat and melt the butter.
Add the minced garlic and stir for about 30 seconds until it smells fragrant.
Stir in the soy sauce, brown sugar, and red pepper flakes.
Cook for about 1 minute until the sauce starts to bubble.
Add the cooked noodles to the skillet.
Toss them gently in the sauce until they are well coated.
Push the noodles to one side of the pan.
Crack the egg into the empty space and scramble it gently.
Once cooked, mix the egg into the noodles.
Transfer to a serving plate.
Top with scallions and everything but the bagel seasoning if using.
Serve right away while warm