During an appearance on BBC Radio 2, Mary revealed: "We have made no decision, we haven't actually, all three, got together... but we will do something because we're good pals. And who knows what it would be?"
Following news that Bake Off will be moving from Channel 4 to BBC next year, Mel and Sue, along with Mary decided to quit out of loyalty to the BBC.
It has since been rumoured that Mary, Mel and Sue will work together on a new show with the channel, to rival Bake Off when it moves to Channel 4. While Mary hasn't confirmed whether that will be the case, she has said she will definitely join forces with Mel and Sue on another project.
In fact, the 81-year-old teased that they could ditch baking altogether and focus on gardening instead.
Mary added: "We haven't been approached yet, but we would love to do something together... I just love their sense of humour."
Mary announced her decision to quit the Great British Bake Off in September and bid farewell to "soggy bottoms." In a statement, she said: "What a privilege and honour it has been to be part of 7 years of magic in a tent - The Great British Bake Off. The Bake Off family - Paul, Mel and Sue have given me so much joy and laughter.
"My decision to stay with the BBC is out of loyalty to them, as they have nurtured me, and the show, that was a unique and brilliant format from day one. I am just sad for the audience who may not be ready for change, I hope they understand my decision. I wish the programme, crew and future bakers every possible success and I am so very sad not to be a part of it."
Paul Hollywood, meanwhile, has decided to stay with the show and has signed a three-year deal with Channel 4 to continue as judge.
Addressing Paul's decision to stay, Mary has said she thinks Bake Off will be a success on Channel 4 with him on board.
She told The Sun: "The Great British Bake Off is going to Channel 4 and I'm sure it'll be very successful with Paul... we had a marvellous time on the programme and that's how it will remain."
Mel and Sue, meanwhile, were first to leave Bake Off after news of its channel move surfaced.
Their statement read: "We were very shocked and saddened to learn yesterday evening that Bake Off will be moving from its home. We made no secret of our desire for the show to remain where it was... we're not going with the dough."
The final episode of Great British Bake Off aired on BBC One on Wednesday (26 October) and viewers saw Candice Brown crowned the winner.
She beat Andrew Smyth and Jane Beedle to the title, gushing after her win: "I never ever thought I'd get on this, and I'm standing here now as this. They said my name and it means more to me than anyone will ever realise."
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