
breakfast? brunch.
by our rules.
Between breakfast and lunch, between brunch restaurant and day bar: global flavors, specialty coffee and cocktails. Daily from 10 a.m. to 3 p.m., between the cathedral and Schillerplatz.
one place, three reasons to stay.

not your classic breakfast.
"Inspired by global flavors and fusion cooking – bold, fresh and diverse." From dumplings and bowls to Turkish eggs: signature dishes with a global twist, sweet and savory, made with precision and served with care.
- vegan & vegetarianPlenty of plant-based and vegetarian dishes; add salmon or bacon if you like
- all day until 2:30 p.m.Brunch whenever it suits you, whether that's 10 a.m. or 2:30 p.m.

day drinking is brunch culture.
Coffee & cocktails, all day long. From spritz creations and fizz drinks to 0% alternatives, our bar is all about quality, balance and taste, with the right drink for every dish.

coffee that delivers.
Careful roasting, precise extraction, velvety milk. Cappuccino, espresso or iced: consistently excellent coffee is our standard.
- espresso blend80% arabica, 20% robusta, roasted by Kaffeerösterei Müller in Bodenheim
- your milkOat, potato or cow's milk
- real matchaSubtle and unsweetened
for two, with your team or for a party.
book online
Pick your party size, date and time – confirmed instantly. 1.5 to 2 hours, depending on party size.
book a tablegroup request
We plan your table personally and get back to you with all the details. 2 hours for your group.
request a group tableevent boutique
Birthdays, company parties, launches: 1,076 sq ft (100 m²) with our own kitchen and bar, up to 120 guests.
visit the event boutique
butter.fly event boutique
from morning espresso to evening cocktails.
Our space becomes the butter.fly event boutique: 1,076 sq ft (100 m²) for product launches, networking and private parties of up to 120 guests – with our own kitchen and bar, and no curfew.
right in the old town.
Große Langgasse 12, a few minutes from the cathedral and Schillerplatz. Wheelchair accessible, family-friendly and air-conditioned.
- monday–sunday
- 10 a.m.–3 p.m.
- kitchen & bar
- À la carte brunch, coffee and drinks until 2:30 p.m.
- phone
- +49 178 3093871




short & sweet.
Does butter.fly serve breakfast?
We serve à la carte brunch rather than a classic breakfast: sweet and savory signature dishes with a global twist, daily from 10 a.m. to 2:30 p.m.
Do I need a reservation?
We recommend one, especially on weekends. Parties of 1–6 can book online; for 7–15 guests, send a group request. Walk-ins are welcome depending on availability. Reservations are for brunch tables only – bar seats and coffee-only visits can't be booked.
Where can I get good brunch in Mainz?
At butter.fly in Mainz Old Town, Große Langgasse 12, between the cathedral and Schillerplatz: modern brunch, specialty coffee and cocktails, made with precision and a global twist.