Seongsu café for cinnamon grapefruit granita: Iridescent

A calm space at Iridescent near Seoul Forest

I visited Iridescent, where you can enjoy refreshing cinnamon granita and coffee. It is a café that has built a reputation through word of mouth for its neat interior and coffee, and the modern, calmly ordered space felt pleasant the moment I walked in. The tables were comfortably arranged with plenty of room between seats, making it nice for an unhurried stay.

The address is 20-1 Seoulsup 4-gil, Seongdong-gu, Seoul, on the first floor, and it is open Monday through Sunday from 10:00 to 22:00. For parking, use public parking around Seoul Forest. Birthday perks, vegan options, takeout, Wi-Fi, and group visits are also available.

Walking from Ttukseom and Seoul Forest stations

Iridescent, a Seoul Forest café, was so easy to reach! Personally, I recommend visiting by subway. It is a five-minute walk from Ttukseom Station Exit 8 or Seoul Forest Station Exit 5; from the Seongsu-dong Galbi Alley intersection, walk 100 m toward Hoho Sikdang and you will spot the black ground-floor building~

The interior is so neat that “sophisticated” is the word that comes to mind for Iridescent.

It is pet-friendly, so it seems like a great place to bring a dog friend. When I visited, there was an insanely cute Pomeranian, and I petted that little friend a hundred times in my heart haha. Seating for guests with pets is limited, so I recommend asking the staff.

Iridescent was clearly a place whose flavors had been recognized: not only by magazines such as the November Bar & Dining magazine, but also on social media and even by the Blue Ribbon survey.

There were blankets and water, too.

Iridescent’s menu and desserts

Here is the menu.

Their signature item is probably the citrus perilla-leaf smoothie, but I ordered other items because I wanted to introduce a range of menu choices.

There is also a wide variety of desserts, including croissants, pound cake, and s’more brookies, so I recommend ordering one alongside your drink!

The coffee and desserts I ordered

Here is what I ordered.

They say you enjoy food once with your eyes and once with your mouth. The plating was so pretty that I was already satisfied just looking at it.

How refreshing is the cinnamon grapefruit granita?

The cinnamon grapefruit granita (₩8,500) is a fruit sorbet combining cinnamon’s sweet aroma with grapefruit’s tartness. Since it was hot, I was drawn to something refreshing. Cinnamon and grapefruit? I was a little doubtful about that pairing, but the cinnamon was not as strong as I expected, so it was bright and refreshing without any heavy, dusty finish!

A huge recommendation for people who love sour flavors; if you do not, choose something else.

A beautifully balanced Americano

The Americano (₩5,000) had perfect balance—not overly bitter or acidic. Coffee customizations include a decaf swap for ₩1,000, an extra shot (two shots are standard) for ₩1,000, a milk choice (Oatside or Maeil soy milk) for ₩1,200, and vanilla syrup for ₩1,000!

S’more brookie with figs

The s’more brookie (₩9,500) came generously topped with ice cream and seasonal figs. Maybe because it is a “s’more” brookie, it was perfectly chewy on the outside and soft within. It was so chewy that it would barely cut with a fork.

You can enjoy it three ways: plain, with ice cream on top, or together with fig like a three-part harmony. Figs can sometimes be watery and flavorless, but these were so sweet that the figs alone were absolutely delicious.

My picks are the cinnamon grapefruit granita (because I love sour flavors so much) and the s’more brookie!

A café for a quiet stay in Seongsu

Iridescent served coffee with a fine balance of acidity and nuttiness, and the desserts we ordered alongside it were reliably delicious, too. Its overall atmosphere is clean and uncluttered, making it a good space for a quiet conversation or reading a book. The café also gets lovely natural light, so photos tend to come out nicely.

I recommend Iridescent to anyone looking nearby for good-quality coffee and comfortable seating, or for a neat neighborhood café that is not overly hectic.