| Millies Cookie's Birmingham Bull Ring Shopping Centre | Biscuit shop | Unit K7, Smallbrook Queensway | Birmingham | Mon 09:15–17:30 |
| Millies Cookie's Brighton Churchill Square Shopping Centre | Biscuit shop | 45 Russell Pl | Brighton | Mon–Sat 10:00–20:00 |
| Millies Cookie's Bristol Cribbs Causeway Shopping Centre | Biscuit shop | Bristol Cribbs Shopping Centre "Unit 003 | Bristol | Mon–Tue 09:30–20:00 |
| Millies Cookie's Cambridge Lion Yard Shopping Centre | Biscuit shop | Unit 17, Lion Yard Shopping Centre, St Tibb's Row | Cambridge | Mon–Wed 09:15–18:00 |
| Millies Cookie's Cardiff Queens Arcade Shopping Centre | Biscuit shop | 22b Queen's Arcade | Cardiff | Mon–Sat 10:00–17:30 |
| Millies Cookie's Glasgow Fort Shopping Centre | Biscuit shop | K3-5, Glasgow Fort Shopping Park, Provan Walk | Glasgow | Mon–Wed 09:00–21:00 |
| Millies Cookie's Glasgow Buchanan Galleries | Biscuit shop | Unit 1A, Buchanan Galleries, 220 Buchanan St | Glasgow | Mon–Wed 09:00–18:00 |
| Millies Cookie's Hull Princes Quay | Biscuit shop | Unit G39, Princes Dock St | Hull | Mon 09:00–17:00 |
| Millies Cookie's Leeds White Rose Shopping Centre | Biscuit shop | White Rose Shopping Centre, Dewsbury Rd | Leeds | Mon–Tue 09:45–21:00 |
| Millies Cookie's Manchester Trafford Centre | Biscuit shop | U79, 108 Peel Ave | Manchester | Mon–Tue 10:00–22:00 |
| Millies Cookie's Newcastle Eldon Square | Biscuit shop | 24 Blackett St, Blackett Bridge | Newcastle upon Tyne | Thu 10:00–18:30 |
| Millies Cookie's Nottingham Victoria Centre | Biscuit shop | Lower Mall | Nottingham | Mon–Tue 09:00–18:00 |
| Millies Cookie's Peterborough Queensgate Centre | Biscuit shop | 60b Long Causeway, Queensgate Centre | Peterborough | Thu 09:30–17:00 |
| Millies Cookie's The Galleries Meadowhall | Biscuit shop | Unit 12B, The Arcade | Sheffield | Mon 10:00–21:00 |
| Millies Cookie's The Potteries Centre | Biscuit shop | 124A (Level, 3 Quadrant Rd | Stoke-on-Trent | Mon 09:00–18:00 |