Occupying the ground floor of 15 Lower Hillgate, Yellowhammer is a collaboration between Buckley, baker Rosie Wilkes and potter Joe Hartley.
Alongside a wide selection of bread, a range of sweet and savoury buns will be baked daily, as well as breakfast sandwiches, lunch sandwiches and a changing selection of cookies, pies and tarts.
A pizza and natural wine night will take place on select Friday and Saturday evenings.
The bakery will supply the bread for Where The Light Gets In, and will share 'the same commitment to supporting small, local producers and using whole ingredients'.
Yellowhammer takes its name from the woodland songbird, known for its distinctive 'a little bit of bread and no cheeeeeese' call.
Sam Buckley opened Where the Light Gets In Stockport old town in 2016 having cooked for a number of high profile chefs including Simon Rogan, Paul Kitching and Gary Rhodes.
The dining space seats 30 guests within a converted coffee warehouse, with the kitchen located within, removing any barrier between the chefs and their guests.
Produce from Buckley's urban farm makes up the foundation of the menu with each dish based on what is caught, harvested and slaughtered that day.