Butter mochi cake — what it is, where it comes from, and where to get it

Butter mochi cake is the same thing as butter mochi. The two names refer to the same Hawaiian dessert: a dense, chewy, naturally gluten-free baked good made from mochiko (sweet rice flour), butter, eggs, sugar, and coconut milk. "Cake" is sometimes added to the name in mainland U.S. cookbooks and grocery stores because the texture sits somewhere between a brownie and a custard — easier to picture as a cake than as something called just "mochi."

If you've heard it called butter mochi, butter mochi cake, mochi butter cake, or chichi dango cake — they're all describing the same recipe lineage.

What makes butter mochi cake different from regular cake

Regular cake is built on wheat flour. The gluten in wheat is what gives traditional cake its airy crumb. Butter mochi cake is built on mochiko — a Japanese sweet rice flour ground from short-grain glutinous rice. There is no wheat. There is no gluten. The texture comes from the starch in the rice, which creates a chewy, slightly springy bite that's totally unlike a flour-based cake.

This is why butter mochi cake is naturally gluten-free. It's not a substitute. It's not a workaround. It's the original recipe as it's been baked in Hawaii for generations.

The Hawaiian-Filipino origin

Butter mochi cake came out of Hawaii's plate-lunch culture in the 20th century, where Japanese mochi traditions met Filipino bibingka (a similar coconut-rice cake) and the abundance of butter and coconut milk in island home kitchens. It became a staple of potlucks, school bake sales, and church gatherings across the islands. Today it's spreading to mainland cafés — Pixlcat is the first dedicated butter mochi café in the U.S.

Where to buy butter mochi cake online

We bake butter mochi cake fresh every day in our Boston Charlestown kitchen and ship it nationwide. Choose from seven flavors — Classic, Ube, Matcha, Black Sesame, Chocolate, S'mores, and Breakfast — in 6, 12, or 18-piece gift boxes.

• Butter Mochi Box (6-Piece) — $39
• Butter Mochi Box (12-Piece) — $78
• Butter Mochi Box (18-Piece) — $117
• Ube Butter Mochi (6-Piece, single flavor)
• Matcha Butter Mochi (6-Piece, single flavor)

Frequently asked questions

Is butter mochi cake the same as butter mochi?
Yes. They're two names for the same Hawaiian dessert. "Cake" is sometimes added because the texture is easier to describe that way to people who haven't had it before.

Is butter mochi cake gluten-free?
Yes, naturally. It's made with mochiko (sweet rice flour) instead of wheat flour. It has never contained wheat. Pixlcat bakes in a shared kitchen, so we can't certify allergen-free, but every butter mochi cake we make is wheat-free by design.

What does butter mochi cake taste like?
Dense, chewy, slightly springy, with a buttery crust on top from baking. Less sweet than American cake, with a richer mouthfeel. The texture is the most distinctive part — there's nothing else quite like it.

How long does butter mochi cake last?
Best within 7 days of baking, or freeze for up to 60 days and reheat at 300°F for 5 minutes to bring back the crust.

Can I ship butter mochi cake as a gift?
Yes. Every Pixlcat box is packed in our signature pink gift packaging and shipped via UPS Ground in insulated containers. Add a gift note at checkout.