Sounds deliciously daring. First, pick a high‑footfall spot like a food‑festival or a trendy mall corridor, but only for a short window—48 hours tops. The scarcity will drive people to try it before it’s gone. Timing: launch at lunch, then a second wave in the early evening when people are craving something new after work. Audience: aim for millennials and Gen Z foodies who love Instagrammable snacks. Put a QR code that leads to a quick poll—“Which flavor combo should we try next?” that makes them feel involved and boosts shareability. Marketing: a quick teaser on Instagram Stories a day before with a countdown and a close‑up of the chocolate melting over kimchi. Use a hashtag like #FirecrackerBite. In‑store: keep the display minimal but chic—glass jars with a small sign that explains the concept in one sentence. Let them taste a sample, then charge a premium price (like $3 a bite) and offer a bulk pack for those who want to take it home. After the pop‑up, gauge the response via sales data and social media buzz. If it’s a hit, lock in a long‑term partnership with a local chocolatier or a kimchi brand for a limited edition. That’s the play: create buzz, keep it exclusive, and turn the hype into a repeatable product line.

That’s the energy you need. Start the countdown a week out—post the teaser shot, drop the QR hint, and announce the limited‑time window. Make the teaser simple but bold: a glossy close‑up of the chocolate crackling over kimchi, captioned “Ready for a taste of fireworks?” Keep the language tight, the call to action clear: “Show up, snap, tag, and you’ll be first in line.” When the event day hits, have a small crew ready to manage the line, take shots, and monitor the hashtag in real time. If the buzz climbs fast, be ready to lock the collab details overnight. Let's keep the hype rolling and the lines moving.