Introducing Butter Milk Lab: A Unique Milk Dessert Boutique at Tokyo Station

A Sweet Revolution at Tokyo Station: The Openings of Butter Milk Lab.

On September 16, 2026, the charming world of sweets will expand at Tokyo Station with the launch of a new boutique, Butter Milk Lab. This unique concept comes from La Terre, a confectionery brand based in Setagaya, Tokyo, known for its dedication to using top-quality ingredients to create desserts that let the flavors truly shine.

Butter Milk Lab. is all about focusing on the core ingredients: milk and butter. Offering a variety of milk-based sweets, this dessert shop has made a name for itself with its innovative and gourmet approach to classic milk treats. Among its standout items is the Monaka An Beurre, an artistic fusion of traditional Japanese confection and French finesse. Picture a moist financier nestled within a monaka shell, brimming with special an-butter (sweet red bean paste blended with butter). Each bite is an experience of melting textures and harmonious flavors.

But that’s just the beginning of what Butter Milk Lab. has to offer. The shop showcases the rich potential of dairy with items like La Cream, which features smooth, luxurious layers of Hokkaido cream and mascarpone cream sandwiched between soft baked cakes. There’s also a variety of puddings, each prepared with utmost care to highlight the best qualities of their primary ingredients.

Crafting Happiness Through Ingredients

The mission of Butter Milk Lab. is clear: to transform high-quality ingredients into delightful sweets that bring joy with every bite. Located in the bustling GranSta Tokyo at the Marunouchi ticket gate area, the store promises to be a haven for sweet enthusiasts. Key to their philosophy is Jersey milk from Farms Chiyoda in Biei, Hokkaido. Jersey milk is prized for its richness and gentle sweetness, and helps create a truly unique sensory experience. Farms Chiyoda adheres to top welfare standards, ensuring that the cows are raised in a way that’s respectful to their well-being. This commitment to excellence means fresh, flavorful milk is delivered straight from farm to sweet creation, retaining its natural goodness.

A Closer Look at the Product Lineup

Apart from the famed Monaka An Beurre, Butter Milk Lab. presents a rich array of sweets:

La Cream

Price: 1,296 JPY (tax included) for 3 pieces | Storage: Refrigerated | Shelf Life: Approximately 5 days.
A creamy delight that merges Hokkaido cream and rich mascarpone with a soft, chewy shell.

Creamy Baked Cheesecake

Price: 1,296 JPY (tax included) for 3 pieces | Storage: Refrigerated | Shelf Life: Approximately 5 days.
This cake captures the essence of natural flavors without unnecessary additives, delivering the richness of the cheese in every bite.

Setagaya Pudding au Lait

Price: 1,296 JPY (tax included) for 3 pieces | Storage: Refrigerated | Shelf Life: Approximately 4 days.
A creamy delight using Okukuji eggs and jersey milk, slow-baked for that perfect texture.

Milky Caramel Sand

Price: 908 JPY (tax included) for 4 pieces | 1,361 JPY (tax included) for 6 pieces | 2,268 JPY (tax included) for 10 pieces | Storage: Room temperature | Shelf Life: Approximately 60 days.
Milk-infused cookies that cradles a caramel sauce nestled in white chocolate.

Through the expertise and commitment of La Terre, Butter Milk Lab. is set to bring the magic of milk-based desserts to Tokyo Station, ensuring that the joy of quality ingredients captures everyone's hearts and taste buds.