What characteristic reportedly defined the international Mars bar compared to the US Milky Way recipe when Forrest Mars sweetened it for the British market?
Answer
It was sweeter due to the addition of more sugar to satisfy British preference.
The divergence between the US Milky Way and the international Mars bar highlights a deliberate act of brand segmentation based on perceived regional palates. When Forrest Mars developed the international version, he intentionally added more sugar to the recipe compared to the US standard. This modification was made specifically to satisfy the British preference, which favored sweeter confections. This adjustment resulted in the international Mars bar—which otherwise uses the US Milky Way's components of chocolate, caramel, and nougat—being noticeably sweeter than its American counterpart.

Related Questions
Why was the original Milky Way candy bar named after the malted milkshake beverage?How did Frank Mars challenge the standard nickel bar dominance, like the Hershey bar, in the mid-1920s?Which individual secured the rights to market the Milky Way recipe outside of the United States following a family falling out?What confection known in the US as the 3 Musketeers bar is sold internationally under the Milky Way name?What was the initial structure of the 3 Musketeers bar when it was introduced in 1932?What was the evocative name given to the dark-chocolate version of the Milky Way bar starting in 1936?Until what year did Mars contract with Hershey's for the supply of chocolate coating for the Milky Way?The contemporary US Milky Way bar relies on caramel and nougat, but which defining characteristic of the original 1923/1924 bar is now entirely absent?What characteristic reportedly defined the international Mars bar compared to the US Milky Way recipe when Forrest Mars sweetened it for the British market?In which specific area of Minneapolis did Frank C. Mars potentially begin manufacturing the Milky Way bar?