HACKETTSTOWN, N.J. — Mars will launch a new M&M flavor in May, M&M’s Brand Birthday Cake Chocolate Candies. The flavor “symbolizes family celebrations, so we think it’s a great fit with our M&M’s brand,” said Larry Lupo, Mars Chocolate North America’s VP sales for convenience and drug channels. The milk chocolate infused with birthday cake flavored candies will be available in a 1.4-oz. single pack for $1.09 and an 8-oz. stand-up-pouch for $2.99.