Network Ten's MasterChef Australia finale drew an audience of 2.71 million as Billie McKay took 2015 title.
The national audience was up 26 per cent on the 2014 final and peaked at 2.86 million.
Grand Final Part 2 (Part 1 went to air on Sunday night) attracted 2.35 million capital city and regional viewers, peaking at 2.85 million.
In the capital cities, MasterChef Australia – The Winner Announced had 2.13 million viewers, up 25 per cent on its 2014 number, and peaked at 2.22 million.
That made it the mostwatched non-sport television program so far this year.
Grand Final Part 2 had 1.84 million capital city viewers and peaked at 2.2 million.
Both The Winner Announced and Grand Final Part 2 dominated their timeslots.
The former captured a 64.3 per cent commercial share in total people and a 68.6 per cent share in people 25 to 54.
The latter had a 50.5 per cent share in total people and a 55.7 per cent share in 25 to 54s.
The series’ average capital city and regional audience was 1.48 million, an increase of 13 per cent on 2014.
Its capital city average was 1.17 million, up 14 per cent on 2014.
It reached 15.5 million Australians nationally, including 11.4 million in the capital cities.
Across this year’s series, MasterChef Australia ranked #1 in its timeslot in total people, 25 to 54s and under 55s.
Network Ten Chief Programming Officer, Beverley McGarvey, said she was very happy with the show's performance.
“It is rare for big, established television shows to grow year on year," she said.
"But MasterChef Australia is a remarkable brand. Its audience grew 31 per cent last year and another 14 per cent this year.
“The show offered viewers a clear point of difference in a cluttered television environment and reinforced its position as the most credible, respected and authentic cooking show on Australian television,” she said.
“The success of MasterChef Australia this year is a great tribute to our wonderful judges, mentors and contestants, Ten’s Executive Producer Rick Maier, our production partner Shine Australia and the many, many people at Ten who worked on the show.”
Network Ten Chief Sales Officer, Louise Barrett, said this year’s series had been a strong commercial success thanks, in large part, to the support of the MasterChef Australia sponsors.
“We had great support and involvement from our sponsors this year, including Coles, Alfa Romeo, Harvey Norman, Swisse Wellness, Finish, Google and McDonald’s Australia,” she said.
“They are an integral part of the MasterChef Australia family and we were delighted to work them to bring their sponsorships to life and to deliver tailored and integrated opportunities.”