1. Char onion, garlic, and ginger until fragrant.
2. In a small pan, toast the pho spices until aromatic.
3. In a pot, combine the toasted pho spices, charred garlic, onion, ginger, carrots, daikon, celery, and chicken flavor powder. Add enough water or broth to cover, then simmer until the vegetables are softened (approximately 30-40 minutes). This will form your broth.
4. To assemble a bowl, add chili powder, sugar, fish sauce, and lime juice into the bottom of the bowl.
5. Add a small amount of the prepared broth, just enough to mix all the seasonings well.
6. Add bean sprouts, cooked noodles, and your preferred protein (like ground pork) to the bowl, then ladle in more hot broth.
7. Top with fresh cilantro, peanuts (if using), a slice of lime, and extra chili if desired. Enjoy!