A hidden gem patisserie from Nihonbashi-Hamacho is bringing its signature fermented butter pound cakes to Kinshicho Marui for a limited time. Tokyo Patisserie TANGRAM will open a pop-up shop on the first floor of Kinshicho Marui from January 18 to 24, 2026.

A Hidden Patisserie in Nihonbashi-Hamacho
Tokyo Patisserie TANGRAM is a small, unassuming shop tucked away in a quiet neighborhood. The moment you open the door, the rich aroma of fermented butter fills the air, marking the start of a luxurious experience.
The signature "Fermented Butter Pound Cake" is made with 100% Japanese fermented butter, featuring a moist texture and robust flavor. Each bite reveals the rich taste of quality ingredients and refined sweetness that lingers in memory. These cakes maintain their moist texture over time thanks to completely sealed packaging, making them ideal for gifts and souvenirs while being easy to carry at room temperature.
Tokyo Patisserie TANGRAM's appeal lies in its simple elegance, free from excessive decoration, and the profound flavors born from careful craftsmanship. Experience the world of confections where meticulous attention to detail brings out the maximum potential of ingredients.
Visit Tokyo Patisserie TANGRAM's official website
Premium Pound Cake Collection (Product Examples)
[Limited Edition] Fermented Butter Pound Cake (Candied Chestnuts) / 1 loaf

¥1,890 (tax included)
A luxurious pound cake wrapped in the fragrant aroma of fermented butter. Moist batter enhanced with the gentle sweetness of raw cane sugar is generously mixed with chopped chestnuts, creating a perfect harmony of sweetness and texture. No margarine or vegetable oils are used—only Japanese fermented butter that creates deep richness and abundant aroma.
Fermented Butter Pound Cake (Walnut & Chocolate) / 1 loaf

¥1,740 (tax included)
The deep umami of fragrant roasted walnuts spreads with each bite, perfectly complementing the rich, smooth couverture chocolate sweetness. The moist, substantial batter embraces this luxurious flavor combination, delivering satisfaction reminiscent of premium chocolate cake. Each bite offers a blissful harmony of nutty fragrance and dense chocolate richness.
Fermented Butter Pound Cake (Caramel & Nuts) / 1 loaf

¥1,690 (tax included)
Rich caramel sauce mixed with generously roasted nuts creates a sophisticated adult flavor where bittersweet notes and sweetness achieve perfect balance. Japanese fermented butter's abundant richness and aroma are sealed within moist, substantial batter. The deep flavor that unfolds with each bite is truly exquisite.
[Women's Favorite No.1] Fermented Butter Pound Cake (Earl Grey) / 1 loaf

¥1,690 (tax included)
Elegant Earl Grey aroma woven into moist batter harmonizes exquisitely with butter's rich body. Made with 100% Japanese fermented butter, absolutely no margarine or vegetable oils are used. The dense, air-minimized texture creates a substantial finish that delivers refined flavor.
Fermented Butter Pound Cake (Raspberry) / 1 loaf

¥1,740 (tax included)
A luxurious pound cake wrapped in the fragrant aroma of fermented butter. Moist batter seals whole raspberries inside, with sweet-tart fruit flavor spreading with each bite. Butter's rich body and raspberry's refreshing acidity harmonize beautifully, finishing with an elegant, clean aftertaste.
[Classic Foundation] Fermented Butter Pound Cake (Vanilla) / 1 loaf

¥1,690 (tax included)
Why not start with the simplest flavor? Premium vanilla bean's sweet, elegant aroma gently spreads through moist batter enveloped in fermented butter's fragrant embrace. Butter's rich body and vanilla's refined sweetness harmonize perfectly, offering luxurious flavor that stands out precisely because of its simplicity.
Fermented Butter Pound Cake (Pistachio) / 1 loaf

¥1,890 (tax included)
Rich pistachio paste batter is generously mixed with fragrant chopped pistachios. Smooth texture and pleasant crunch create perfect harmony in your mouth. Pistachio's inherent deep richness and fragrant aroma spread throughout—a truly luxurious treat.
Fermented Butter Sablé / 9 pieces, Vanilla

¥1,755 (tax included)
Sablé batter packed with fermented butter's rich body is generously mixed with aromatic vanilla beans. Vanilla's sweet, elegant aroma gently spreads while subtle rock salt adds depth to the flavor. Enjoy the crumbly, melt-in-your-mouth texture.
[Financier / 1 piece] Plain

¥340 (tax included)
The rich aroma of brown butter and fragrant almond flavor intertwine beautifully in this beloved classic menu item. Butter's deep richness and nutty umami fill your mouth, delivering luxurious flavor that satisfies the soul. Simple yet outstanding—experience the quality of premium ingredients.
Shop Details
Location: Kinshicho Marui 1F
Period: January 18 (Sunday) to January 24 (Saturday), 2026
Hours: 10:30 AM to 8:00 PM
▼ Kinshicho Marui
Official Website
▼ Marui Group
Official Website