7-Eleven Japan × BUTTER STATE’s Rich Strawberry “Volcano” Butter Cookies

[Viral Seasonal Limited Edition] 7-Eleven Japan × BUTTER STATE’s Rich Strawberry “Volcano” Butter Cookies

A highly popular seasonal dessert from the collaboration between BUTTER STATE’s and 7-Eleven Japan.

This is one of the most talked-about convenience store sweets in Japan right now.

Three-Layer Texture Design

1. Outer Layer

Rich strawberry chocolate (approx. 40% strawberry content)

Sweet and tangy, similar to strawberry milk × white chocolate

2. Inner Cookie

High butter content (approx. 34%)

Crumbly, rich, and delicate texture

3. Shape

Designed to resemble Mount Fuji

Raised center with a coated outer layer

Flavor Profile

A balanced combination of sweet × salty × tangy:

Strawberry: rich with a natural tartness (not artificial)

Butter: very pronounced, with a slight savory depth

BUTTER STATE’s is known for its premium butter-based desserts, and it shows here

Overall texture is smooth on the outside, crumbly inside, delivering a refined, dessert-like experience.

Official concept:

Strawberry sweetness and acidity × deep fermented butter richness

Best Way to Enjoy

Chilled: chocolate firms up, texture feels more like a premium dessert

With coffee: balances the sweetness perfectly

Slightly warmed (a few minutes at room temperature): enhances the butter aroma

Allergen Information

Contains: Milk, Wheat

May contain: Egg, Nuts

Product Details

3 individually wrapped pieces per pack

A rich, indulgent treat that combines intense butter flavor with vibrant strawberry chocolate, making it one of the most sought-after seasonal sweets in Japan.