The Grumpy Baker is a bakery at 595 Victoria Street in Hamilton Central. It bakes European-style breads, including ciabatta, pide, baguettes and sourdough, along with pies, pastries, eclairs, lamingtons, biscuits, donuts and slices. Its sandwiches use freshly baked rolls, and the BLT on baguette is a crowd favourite. It serves Havana Coffeeworks coffee.
The bakery is open 6am to 3pm on weekdays and 7am to 2pm on Saturdays. Customers can order for same-day pickup through the website, or get delivery through DoorDash. On Open Locally it is one of five bakeries within a kilometre, with La Promesse Bake House and Gailers Cake Kitchen both 0.3 km away.