Designed to tap into the "informal and sociable lifestyles of young adults", Doritos Collisions come in 220g bags of T-Bone Steak & Grilled Pepper, and Chicken Sizzler & Zesty Salsa.
The brand, which has already been launched in the US, will hit retailers' shelves from this month with an rrp of £1.77.
The UK launch will be backed by an online and experiential marketing programme
as part of the brand's £2.5 million You Make It, We Play It promotion, which invited consumers to create and choose the next Doritos TV ad.
The winning ad was selected from
more than 1,000 entries and voted for by the public. Its creator,
25-year-old Matt Bowron , won £20,000 for an animated ad depicting a tribal sacrifice involving Doritos and dip.
It was also the first ad to be broadcast into space, earning a place in the Guinness Book of Records.
Marketing director Thomas Delabriere said: "With over 1 million video views, the huge buzz around the You Make It, We Play It promotion has created a great platform from which to launch Doritos Collisions."
He described the idea of mixing different flavoured crisps in a single bag as a "unique concept" that provides retailers with an opportunity to offer customers "something totally different to anything they've tasted before".