The first series of The Great British Bake Off first aired on BBC Two on 17 August 2010. Ten home bakers took part in a bake-off to test their baking skills as they battled to be designated the best amateur baker. Each week the programme bakers participated in three challenges in a particular discipline, with some being eliminated at the end of each episode. The rounds of the competition took place in various locations across the UK following a theme, for example, the episode on puddings took place in Bakewell, bread baking would take place near Sandwich. 

This first series had a voiceover by Stephen Noonan; for the subsequent series this role was taken by the on-screen presenters Mel Giedroyc and Sue Perkins. The competition was won by Edd Kimber. The hosts were Paul Hollywood and Mary Berry.