Blend garlic, shallots, and dried shrimp with a little oil, then set aside.

In another bowl, mix chili powder, salt, brown sugar,rice vinegar, and mushroom powder. Stir until well combined.

Heat oil in a pan, then add star anise, cloves, cardamom, bay leaves, and powdered cinnamon. Cook for a few minutes, then remove the spices.

Pour in sesame oil and the mixture of chopped onions into the spiced oil. Cook until fragrant and the color turns brown.

Pour this mixture into the bowl of chili mixture, then stir until well combined.

Prepare a bowl with water, then dip each rice paper sheet into the water and place them on a cutting board.

Repeat the previous step until all the rice paper sheets are used, stacking them on top of each other.

Cut the stacked rice paper into noodle-like strips, then place them back into the water and let them sit for a while until the noodles separate from each other.

Place the noodles in a bowl, then drizzle with chili oil and stir until well coated.

Serve with fish balls, sesame seeds, and chopped green onions!