Heat oil over med-low, and fry shallot until golden brown.
Set aside shallot, leaving the shallot oil in pan.
Over medium heat, cook pork in pan until no longer pink.
Add garlic and chilli to cook for a minute.
Then pour in sauce, crispy shallots, spring onion, and sesame oil.
Add noodles to cook until soft, and sauce almost absorbed.
Add xiao bai cai to cook until wilted.