Heat 1 tablespoon olive oil in a large saute pan over medium heat. Add ground beef and cook until browned, breaking up the meat into small chunks.
Add shallots and garlic and saute for 2 more minutes or until shallots are softened.
Add chicken stock, soy sauce, sugar, Shaoxing wine, and white pepper, stirring to combine. Bring to a simmer, cover the pan and reduce heat to low. Continue to simmer for 30 minutes. Remove from heat and let sit for 10 minutes. Adjust seasoning with salt and white pepper.
While the sauce is resting, cook the noodles. Portion noodles into bowls and top with minced beef sauce. Sprinkle scallions and serve immediately.
Notes
I recommend using 80/20 ground beef for the best results.If you can't find Shaoxing wine, substitute it with dry sherry.