Soup Dumpling Onion Cups

Cultural Context

Soup dumpling onion cups are a 2026 social-media snack built around frozen xiao long bao or soup dumplings served inside crisp sweet onion layers. The trend is credited in several food publications to TikTok creator Courtney Cook Bales, whose version pairs Trader Joe's-style soup dumplings with Vidalia onion cups, chili crisp, soy-based sauces, mayo, and crunchy onion garnish. The appeal is partly practical: the onion catches the dumpling broth while adding a sharp, juicy crunch.

Ingredients

Main Components

• 16 frozen soup dumplings, chicken, pork, shrimp, or vegetable, kept frozen until cooking
• 2 large sweet onions, preferably Vidalia or Peruvian, peeled
• 480 ml (2 cups) ice water
• 30 ml (2 tbsp) rice vinegar
• 1 g (1/4 tsp) fine salt

For the Sauce/Garnish

• 45 ml (3 tbsp) Japanese barbecue sauce, such as Bachan's, or teriyaki sauce
• 30 ml (2 tbsp) soy sauce
• 30 ml (2 tbsp) Kewpie mayonnaise or regular mayonnaise
• 30 ml (2 tbsp) sweet chili sauce or sriracha, to taste
• 30 ml (2 tbsp) chili crisp
• 15 g (1/2 cup) fried onion crisps or crunchy shallots
• 2 scallions, thinly sliced
• 6 g (1 tbsp) toasted sesame seeds

Substitutions:

• Sweet onions -> yellow onions soaked for the full 10 minutes, or red onion for a sharper bite
• Japanese barbecue sauce -> teriyaki sauce, dumpling sauce, or a 2:1 mix of soy sauce and honey
• Kewpie mayonnaise -> regular mayonnaise with a few drops of rice vinegar

Equipment

• Steamer basket or microwave-safe tray, depending on dumpling package directions
• Small mixing bowl
• Sharp knife
• Rimmed tray or serving platter

Instructions

Preparation (Active time: 15 min)

1. Make the onion cups: Cut each onion in half from root to tip, then trim away the root end. Separate the curved layers into 16 sturdy cups, choosing pieces large enough to hold one dumpling. Stir the ice water, rice vinegar, and salt together, add the onion cups, and soak for 10 minutes to mellow the raw bite. Drain well and pat dry.

2. Mix the sauces: Set out the Japanese barbecue sauce, soy sauce, mayonnaise, sweet chili sauce, and chili crisp separately so each cup can be topped in layers. For a neater party tray, whisk the Japanese barbecue sauce and soy sauce together in one bowl and keep the mayonnaise and chili crisp separate.

Cooking (Active time: 5 min)

3. Cook the dumplings: Steam or microwave the frozen soup dumplings exactly according to the package directions, usually 2 to 3 minutes for microwave trays or 8 to 11 minutes in a lined steamer. They should be fully hot, tender, and filled with broth. If the package lists a safe internal temperature, follow it; otherwise cook until the filling reaches 165°F (74°C).

Assembly & Finishing

4. Build the cups: Place the drained onion cups on a rimmed tray. Nestle one hot dumpling into each onion cup, keeping the dumplings upright so the broth stays inside.

5. Sauce generously: Spoon a little Japanese barbecue sauce and soy sauce over each dumpling. Add a small ribbon of mayonnaise, a dab of sweet chili sauce, and 1/4 to 1/2 teaspoon chili crisp per cup.

6. Garnish and serve: Finish with fried onion crisps, scallions, and sesame seeds. Serve immediately as one-bite snacks while the dumplings are hot and the onion cups are still crisp.

Food Safety & Storage

• Minimum safe internal temperature: 165°F (74°C) for dumplings with meat, poultry, seafood, or mixed fillings
• Storage: Best eaten immediately after assembly. Store leftover cooked dumplings separately from onion cups in an airtight container for up to 3 days.
• Freezing: Do not refreeze cooked dumplings. Keep unused frozen dumplings frozen according to package guidance.
• Reheating: Reheat cooked dumplings by steaming or microwaving until 165°F (74°C). Assemble with fresh onion cups after reheating.

Serving Suggestions

• Serve as a snack board with extra chili crisp, soy sauce, and black vinegar on the side.
• Pair with cucumber salad, edamame, or a simple cabbage slaw to balance the richness.
• Traditional serving style: soup dumplings are usually eaten carefully to catch the hot broth; the onion cup is the viral twist that turns each dumpling into a hand-held bite.

Scaling Notes

Half recipe (1/2x): Use 8 dumplings and 1 large sweet onion. Keep the same onion soak time.

Double recipe (2x): Cook dumplings in batches so they do not tear or cool before serving. Prepare extra onion cups because some onion layers may be too small or too flat to hold a dumpling.

Chef's Notes

• Sourcing: Use sweet onions for the cleanest raw crunch. Frozen soup dumplings from Trader Joe's, Bibigo, MiLa, Laoban, or an Asian grocery store all work.
• Make-ahead: Onion cups can be separated, soaked, drained, and refrigerated for up to 4 hours. Cook dumplings just before serving.
• Variations: Add kimchi pickles, black vinegar, furikake, or a small spoonful of ramen noodles to echo variations mentioned in trend coverage.
• Common pitfalls: Avoid oversized raw onion pieces, which can overpower the dumpling. Do not pierce the dumplings before placing them in the onion cups or the broth will leak out.

Nutrition Information (Optional)

Per serving: approximately 310 kcal

• Protein: 12g | Fat: 15g | Carbohydrates: 34g | Fiber: 3g

Sources

• Parade: https://parade.com/food/trader-joes-soup-dumplings-onion-cup-recipe-tiktok/
• Sporked: https://sporked.com/article/trader-joes-soup-dumpling-onion-cups/
• The Takeout: https://www.thetakeout.com/2085138/tiktok-trend-soup-dumplings-onion-cup-courtney-cook-dim-sum/
• Spoon University: https://spoonuniversity.com/news/why-are-people-putting-soup-dumplings-in-onion-cups/
• Image source: https://sporked.com/wp-content/uploads/2026/02/onion-cup-soup-dumplings.jpg

Version History:

• v1 (2026-05-08): Initial recipe by @Codex

Credits:

• Recipe development: @Codex, adapted from the listed source and trend coverage
• Testing: @Codex
• Verification: @Coordinator
• Photography: Sporked / Trader Joe's, source image listed above

Recipe Location: /My-Library/Cooking/Recipes/Recipe-of-the-Week/Recipes/2026-05-08_soup-dumpling-onion-cups.md
Images Location: /My-Library/Cooking/Recipes/Recipe-of-the-Week/Images/soup-dumpling-onion-cups/