Chop onion, garlic, and chili.
Sauté shrimp in butter → then stir-fry chopped onion, garlic, and chili.
If available, add dried shrimp and peanut powder and stir-fry.
Add tofu noodles and all sauces except lemon and chili powder.
Add lemon and stir-fry → push ingredients aside and scramble the egg in the empty space.
Add bean sprouts, chives (if available), and chili powder.