Lotte's Black Sesame Chaltteok Ice from "Uju Tteokjip": Where to Buy It in Korea and What It Costs (3 for ₩5,000 at CU)

If you've been watching Korean variety clips, you've probably seen IVE's An Yu-jin take one bite of a grey, black-sesame rice-cake ice cream and go quiet for a second, followed by a wave of "I cleared out the convenience store" reels. What those clips never tell you is what the thing is actually called, where you can buy it in Korea, and what it costs. We cross-checked Lotte's official online store, CU's official promotion list and Korean news reports, so here's the exact name to look for, prices by store, the cheapest way to buy, and what changes in October before your Seoul trip.

Photo: Lotte Wellfood product image (as published by Herald Business, Sept 9, 2026). The small "AI" mark on the package is Lotte's own label for its staged imagery.

1. The quick answer: where to buy it and how much (as of October 1, 2026)

A bit of background first. Chaltteok Ice (찰떡아이스) is a long-running Lotte ice cream: ice cream wrapped in chewy chapssal-tteok, a sweet rice cake similar to Japanese mochi. This new flavor's official name is "Chaltteok Ice IN Uju Tteokjip Black Sesame Injeolmi" (찰떡아이스 IN 우주떡집 흑임자인절미). It's sold at convenience stores, big supermarkets, and Lotte Wellfood's official online store "Sweet Mall." Prices vary a lot by channel (rough USD at ₩1,400 = $1):

Where	Price	Per pack
CU convenience store	₩2,500 (~$1.80), buy 2 get 1 free in October (3 for ₩5,000, ~$3.60)	~₩1,667 (~$1.20)
Sweet Mall, single	₩1,400 (~$1)	₩1,400
Sweet Mall, 16-pack	₩22,400 → ₩19,040 (~$13.60), free shipping	₩1,190 (~$0.85)
Sweet Mall set (8 walnut + 8 black sesame)	₩20,800 → ₩18,100 (~$12.90)	~₩1,131

For travelers, CU is the realistic option. Sweet Mall is a Korean-language shop that ships frozen boxes to Korean addresses, so it's really for people living in Korea. CU is one of Korea's big three convenience store chains, and branches are easy to find around Seoul. The October buy-2-get-1 deal means three packs cost about $3.60.

These prices come from Sweet Mall's product pages and CU's official promotion list, both checked on October 1, 2026. GS25, 7-Eleven and emart24 didn't list it in their October 1 promotions, and we couldn't confirm their regular prices, which doesn't mean they don't carry it.

2. Why everyone wants it: from a TV show menu to 1 million sold

The TV show behind it

"Uju Tteokjip" (우주떡집, roughly "Space Rice Cake Shop") is a tvN variety show from producer Na Young-seok that premiered on July 31, 2026. Comedian Lee Eun-ji, OH MY GIRL's Mimi, rapper Lee Young-ji and IVE's An Yu-jin run a rice cake shop in Goheung, a rural county on Korea's south coast, as a penalty for failing an escape-room mission on their earlier show "Earth Arcade 2." On the show they made a "black sesame torong ice cream" out of Chaltteok Ice. According to Segye Ilbo, the episode that aired on August 21 showed An Yu-jin tasting it, falling briefly speechless, then breaking into a big smile. Lotte turned that exact menu into a real product, and the official store page says "the menu from tvN's Uju Tteokjip comes to life!"

What's inside

• Black sesame ice cream with a ribbon of injeolmi syrup (injeolmi is a roasted soybean-powder rice cake flavor, nutty and toasty), wrapped in a chewy rice cake
• 90ml, 2 pieces per pack
• 170 kcal, 30g sugar (30% of the Korean daily value), 55mg sodium, 0g trans fat, per the package

Photo: Lotte Wellfood Sweet Mall official image for the sold-out clicker keyring set (marked as AI-staged by Lotte). Each pack has 2 pieces; the keyring merch is no longer available.

How big the craze got

Korean outlets including Herald Business and Segye Ilbo reported that the first run of about 500,000 units sold out within five days of launch, and Sweet Mall's first pre-order (500 sets with a Chaltteok-shaped "clicker" keyring) sold out in 18 hours, so Lotte started emergency extra production. According to News Inside, sales passed 1 million units as of September 17. The keyring sets sold out in every round, and all of them are still marked sold out, so you can't get the merch now.

If you're into Korea's convenience-store dessert hype, our guide to GS25's sold-out Hanjungsun yogurt mochi covers another one that kept vanishing from shelves.

3. Two things changing in October

The "Uju Tteokjip" packaging is going away

According to News Inside, Lotte plans to switch products made from October onward to a regular design without the "Uju Tteokjip" branding, and keep selling it year-round. So it's no longer a limited edition.

• If you don't see the space-themed package, it probably hasn't been discontinued. Look for "찰떡 흑임자인절미."
• If you want the bunny-astronaut package as a souvenir, the stock on shelves now may be the last of it.

The QR receipt event: the dates on the package don't match

The package has a "Return to Earth event": scan the QR code and upload your receipt for a chance at a prize. But the printed dates differ by package. The September press photo says "26.8/22 ~ 10/31", while the Sweet Mall product image says "26.8/22 ~ 9/30." We couldn't confirm which is final or what the prizes are, and the event page is in Korean. If you're curious, scan the QR before tossing your receipt to see whether it's still running.

4. Practical tips for travelers

• Show this name at the store: CU lists it as "롯데)찰떡흑임자인절미". Save that on your phone and show it to staff, since searching "Uju Tteokjip" may not find it.
• It's in the ice cream freezer: look for the dark space-themed package with a bunny (or, for newer stock, the regular design without the show branding).
• Stock is uneven: Lotte said it's restocking each channel as production allows, so if one CU is out, try the next one down the street.
• Can it go home with you? It's a frozen product, so it won't survive a flight home. Eat it in Korea.
• Wait 3 minutes: straight from the freezer the rice cake is hard. The package itself says it's best after about 3 minutes.
• Sugar check: one pack (2 pieces) is 170 kcal with 30g of sugar, so maybe not three in one sitting.

For more Korean convenience-store ice cream to try on the same run, see Korea's wild convenience store ice cream mashups.

5. Bottom line

For a visitor, the easiest buy is CU's October buy-2-get-1 deal: three packs for ₩5,000 (~$3.60). Look for "롯데)찰떡흑임자인절미" in the freezer. The TV-show packaging is being phased out from October, but the flavor itself is staying.

Save this for your trip so you have the Korean name handy, and if you find it (or a different price) at a store in Seoul, drop a comment so other travelers know where to look. If anything here has changed, let us know and we'll update it.

Sources: Lotte Wellfood Sweet Mall product pages (checked Oct 1, 2026), CU official promotion list (checked Oct 1, 2026), Herald Business, Segye Ilbo, Hankyung, Next Daily, Food Today, The Public, Wikitree, Mediapen (September 2026), News Inside (Sept 18, 2026), Star News and CJ ENM (show details). Prices and promotions are as of October 1, 2026 and may vary by store and date.