Chop onion, garlic, and chili.
Sauté shrimp in butter, then add onion, garlic, and chili.
Add dried shrimp (if available) and ground peanuts, and stir-fry.
Add tofu noodles and all the sauce ingredients except lemon and chili powder.
Add lemon and stir-fry; scramble eggs in the empty space.
Finish with bean sprouts, chives (if available), and chili powder.