English Toffee Nut won flavor of the year 2019 beating two contenders, Mexican Jalapeño Peanut and Thai Coconut Peanut. All three internationally inspired peanut flavors were available at the start of the year, and people have been voting for the one to keep ever since. Allison Miazga-Bedrick, brand director of M&M's, referred to English Toffee Nut as the "overwhelming fan-favorite" in a press release.
This particular flavor is inspired by Great Britain and its buttery English toffee. It features milk chocolate and toffee peanut pieces wrapped in M&M's signature crispy shell, and it's clearly just as addictive as original Peanut M&M's. English Toffee Peanut will officially join the brand's lineup beginning in August, and you can continue to find it at US stores for the next 18 months.