Called Hash & Bun, the brand is available via Deliveroo and went live last week (25 July).
As the name suggests, the food offer will comprise a selection of chicken, beef and tofu burgers as well as hash fries made with potato, onion, salt and pepper with topping options that include H&B sauce, BBQ brisket, Fried Chicken, and spicy Gochujang tofu.
The buns are baked overnight by locals Hobbs House Bakery using Wildfarmed flour.
Hash & Bun is available during the evenings - 5pm-10pm - from Thursday to Sunday.
Boston Tea Party openeed its first café on Bristol’s Park Street in 1995 and operates a portfolio of 23 venues located predominantly in the south west of England.