The restaurant chain, which relaunched in the UK in 2014 after pulling out of the country in the 90s, plans to open 78 new stores over the next 4-5 years and recruit 1,170 new staff.
Speaking after the launch the firm's Liverpool store opening - the brand's first foray into the North West of England, chief executive Nigel Travis told the Press Association: "We currently have 22 stores and our short term goal is 100 restaurants.
"We were here in the mid-90s in central London, but the rent was very high and our focus was just on doughnuts. Now we have our beverage offering with great coffee and also sandwiches, we're much more confident."
Travis also hailed Dunkin' Donuts' multi-million-pound partnership with Liverpool Football Club, saying that it has helped boost brand awareness. The company is the club's official coffee, tea and bakery provider.
Founded in Massachusetts in 1950, the firm now has more than 11,000 stores in 33 countries and also operates the Baskin-Robbins ice cream brand.