Can I prepare the onion cups ahead of time?
Yes. Slice and separate the onion layers up to 2 hours ahead; store in an airtight container. Assemble just before serving to keep them crisp.
What's the best way to cook frozen soup dumplings for this dish?
Boil them in salted water until they float and cook 2–3 minutes more, or steam for 6–8 minutes. Pat dry before placing in onion cups to prevent sogginess.
Can I make this vegetarian?
Use vegetable-flavored instant noodles instead of spicy cold noodles, and swap chicken flavor chili oil for a neutral or garlic chili oil. Serve with vegetable dumplings.
How spicy is this dish, and can I adjust the heat?
It's quite spicy with 2 tbsp extra spicy sauce plus chili oil. Reduce either component by half for medium heat, or omit chili oil and use mild sauce for mild flavor.
Can I scale this recipe up for a crowd?
Yes. Multiply each ingredient proportionally and prepare the components separately—cook noodles and dumplings in batches, then assemble individual bowls to order.